ByteKit · Free Online Utility Hub

Free, privacy-first browser tools for developers, writers, designers, and creators. Every tool runs entirely in your browser — no uploads, no accounts, no tracking.

Programmer & Developer Tools

  • JSON Validator — Validate, parse, and prettify JSON — load it from a URL or curl command, or convert a Python dict (single quotes, True/False/None) to JSON. Identifies syntax errors with precise line number reporting.
  • Code Beautifier — Automatically format your JavaScript, CSS, and HTML with customizable indentation and style rules.
  • Minifier — Reduce bundle sizes by removing whitespace, comments, and optimizing code structure for production.
  • SQL Formatter & Beautifier — Pretty-print and indent SQL queries across dialects (PostgreSQL, MySQL, T-SQL, BigQuery, and more) with configurable keyword casing.
  • XML Formatter — Beautify and validate XML with configurable indentation, or minify it to the smallest valid output — entirely in your browser.
  • JSON Diff — Compare two JSON objects (or Python dicts) structurally to spot added, removed, and changed keys — or switch to line and word mode for plain text and code.
  • RegEx Tester — Build and test regular expressions in real-time with syntax highlighting and match group visualization.
  • Base64 Converter — Quickly encode and decode strings or files to Base64 format for safe data transmission.
  • URL Encoder / Decoder — Percent-encode or decode text, URLs, and query strings — with batch line mode and a parsed parameter breakdown.
  • JWT Debugger — Decode and inspect JSON Web Tokens. Verify signatures and view payload data without exposing secrets.
  • JWT Generator & Signer — Build and sign JSON Web Tokens (HS256/384/512) from a custom header and payload using your secret — signed locally with the Web Crypto API.
  • Hash Generator (MD5, SHA-256…) — Compute MD5, SHA-1, SHA-256, and SHA-512 hashes of text or files, and verify downloads against an expected checksum — all on your device.
  • Password Generator — Generate strong, random passwords with a strength meter — choose length, character sets, no-look-alikes, or pronounceable mode. Cryptographically secure, never saved.
  • Bcrypt Hash & Verify — Generate bcrypt password hashes with a configurable cost factor, or verify a password against an existing hash — entirely client-side.
  • UUID Generator (v1–v7) & Random String — Bulk-generate UUIDs of every version — random v4, sortable v7/v6, timestamp v1, name-based v3/v5 — plus crypto-random strings with custom characters.
  • QR Code Generator — Turn any text or URL into a QR code — custom colors, error-correction level, and crisp SVG or high-res PNG export. No watermark, no signup.
  • YAML ↔ JSON Converter — Convert between YAML and JSON in both directions with live preview, validation with exact error positions, and multi-document support.
  • JSON ↔ CSV Converter — Flatten JSON arrays into CSV with column selection and Excel-ready download, or parse CSV back to JSON with type inference.
  • TOML ↔ JSON Converter — Convert between TOML and JSON in both directions with live preview and clear error messages — perfect for config files.
  • .env ↔ JSON Converter — Parse .env files to JSON (comments, quotes, multiline values handled) or generate .env from JSON config — entirely in your browser.
  • JSON to TypeScript & Types — Generate TypeScript interfaces, Go structs, Python TypedDicts, or Zod schemas from a JSON sample — nested objects and arrays are inferred automatically.
  • JSONPath Query Tester — Run JSONPath queries against any JSON document live and see the matched results instantly — great for exploring API responses.
  • Mock / Fake Data Generator — Generate realistic fake datasets — names, emails, UUIDs, dates, and more — and export them as JSON, CSV, or SQL inserts for testing and seeding.
  • String Escape / Unescape — Escape and unescape strings for JSON, JavaScript, HTML entities, SQL, and backslash sequences — both directions, live in your browser.
  • Slugify (URL Slug Generator) — Turn any text into clean, URL-safe slugs — strip accents, pick a separator, set a max length — processing each line live in your browser.
  • Number Base Converter — Convert numbers between binary, octal, decimal, and hexadecimal live, with a bitwise calculator (AND, OR, XOR, NOT, shifts) — arbitrary-precision via BigInt.
  • CSS px ↔ rem/em Converter — Convert px to rem and em at a chosen root font size, both directions, with a handy quick-reference table — exact math, in your browser.
  • Color Converter & Contrast Checker — Convert colors between HEX, RGB, HSL, HSV, and OKLCH, and check WCAG AA/AAA contrast between any two colors — all live in your browser.
  • Cron Generator — Generate cron job expressions using a human-friendly interface. Includes execution schedule preview.
  • Cron Expression Explainer — Paste a cron expression to get its plain-English meaning, a per-field breakdown, and the next scheduled run times — all in your browser.
  • cURL → Code Converter — Paste a curl command and get equivalent fetch, axios, or Python requests code — headers, body, method, and basic auth parsed automatically.
  • chmod Permission Calculator — Convert Unix file permissions between a click-grid, octal (e.g. 750), and symbolic (rwxr-x---) — including setuid, setgid, and sticky bits.
  • .gitignore Generator — Compose a .gitignore from language, framework, and OS templates — search, pick, and download a ready-to-use file in seconds.
  • HTTP Status Code Reference — A searchable, filterable reference of every HTTP status code with its meaning and when to use it — from 100 to 511.
  • SVG Optimizer — Minify and clean SVG markup — strip comments, editor metadata, and whitespace, round coordinates — with a live before/after size readout and preview.
  • Open Graph & Social Card Generator — Generate Open Graph and Twitter Card meta tags with a live link-preview for X, Facebook, LinkedIn, and Discord — plus title/description length warnings and an image-size validator.
  • IPv4 Subnet Calculator — Compute network and broadcast addresses, host range, usable hosts, subnet mask, wildcard, and CIDR for any IPv4 address and prefix.
  • Open Graph Image Generator — Design the 1200×630 social share image itself — background, title, description, logo, and accent — then download a PNG. Pairs with the Open Graph meta tag generator.
  • Link in Bio Builder — Build a free Linktree-style link-in-bio page — add your name, bio, avatar, and links, pick a theme, and download a standalone HTML page or share an editable link. No account, no hosting lock-in.
  • HAR Analyzer — Open, explore, and analyze HAR network captures — request waterfall, headers/cookies/payload inspector, performance insights, and a printable report. Parsed entirely in your browser.
  • HAR Compare / Diff — Compare two HAR captures side by side — see added, removed, and changed requests with status, size, and timing deltas. Perfect for before/after performance regressions and A/B captures.
  • HAR to Load Test — Convert a HAR capture into a load-test script — k6, Artillery, JMeter (.jmx), or Locust. Filter requests, include headers, and redact secrets. Generates a script to run yourself; nothing is uploaded.
  • Find & Replace (Regex) — Find and replace text in bulk — plain or regular-expression search with capture groups, case-insensitive, whole-word, and multiline options, plus a live match count and highlighted preview.
  • Strip HTML Tags — Remove HTML tags to get clean plain text — optionally preserve line breaks and keep link URLs. Entities are decoded automatically.
  • Line Tools (Prefix, Suffix, Number) — Bulk-edit lines of text — add a prefix or suffix, number lines, and indent — applied live to every line.
  • Text to Binary / Hex / ASCII — Convert text to and from binary, hexadecimal, decimal, and octal — UTF-8 aware, both directions, with a swap button.
  • Unicode Character Inspector — Inspect any text character by character — code point, category, Unicode block, UTF-8/UTF-16 bytes, and HTML, JS, CSS, and URL escapes.

Text & Content Utilities

  • Slugify (URL Slug Generator) — Turn any text into clean, URL-safe slugs — strip accents, pick a separator, set a max length — processing each line live in your browser.
  • Word & Character Counter — Count words, characters, sentences, paragraphs, and estimate reading time.
  • Case Converter — Toggle between camelCase, PascalCase, snake_case, and kebab-case instantly.
  • Find & Replace (Regex) — Find and replace text in bulk — plain or regular-expression search with capture groups, case-insensitive, whole-word, and multiline options, plus a live match count and highlighted preview.
  • Whitespace & Line Cleaner — Tidy messy text — trim lines, collapse extra spaces, remove blank lines or all line breaks, and convert tabs to spaces — with stackable options applied live.
  • Diff Checker — Compare two blocks of text to find additions, deletions, and subtle changes.
  • Fancy Text & Font Generator — Turn your text into 𝓯𝓪𝓷𝓬𝔂 Unicode fonts — bold, script, bubble, glitch/zalgo — plus decorative borders and an invisible blank-space character for Instagram, TikTok & X bios. Tap to copy.
  • Caption & Hashtag Counter — Count characters against Instagram, X, TikTok, LinkedIn, Threads, Bluesky, and more — each counted the way that platform counts — with a “… more” feed-cut preview and hashtag, mention, and emoji tallies.
  • Emoji Picker & Search — Search emoji, kaomoji text faces (◕‿◕), aesthetic symbols (stars, hearts, dividers), and ready-made emoji combos — pick a skin tone and tap to copy. Recently used are remembered.
  • Markdown → HTML — Convert Markdown into clean, copyable HTML with a live preview. Supports GFM tables, code blocks, and task lists.
  • Strip HTML Tags — Remove HTML tags to get clean plain text — optionally preserve line breaks and keep link URLs. Entities are decoded automatically.
  • Lorem Ipsum Generator — Generate placeholder text for layouts — by paragraphs, sentences, or words, with optional HTML output.
  • List Randomizer & Sorter — Shuffle, sort, dedupe, reverse, or pick random items from any list.
  • Readability & Text Statistics — Score your writing with Flesch Reading Ease and Flesch–Kincaid grade level, plus syllable, sentence, and long-sentence stats — ideal for writers and SEO.
  • Keyword Density Checker — Analyze 1-, 2-, and 3-word phrase frequency and density with optional stopword filtering — a core on-page SEO check, computed in your browser.
  • Line Tools (Prefix, Suffix, Number) — Bulk-edit lines of text — add a prefix or suffix, number lines, and indent — applied live to every line.
  • Text Repeater — Repeat any text a chosen number of times with a custom separator — new line, space, comma, or your own — with optional numbering.
  • Remove Accents / Transliterate — Strip diacritics and transliterate special letters (café → cafe, Straße → Strasse) for slugs, filenames, and legacy systems.
  • ROT13 / Caesar Cipher — Encode and decode text with a Caesar shift cipher, including the classic ROT13 preset — case preserved, punctuation untouched.
  • Morse Code Translator — Translate text to Morse code and back, with optional audio playback of the dots and dashes — letters, digits, and punctuation supported.
  • NATO Phonetic Alphabet Speller — Spell text in the NATO phonetic alphabet (Alfa, Bravo, Charlie…) and back — for clear callouts over phone and radio.
  • Text to Binary / Hex / ASCII — Convert text to and from binary, hexadecimal, decimal, and octal — UTF-8 aware, both directions, with a swap button.
  • Unicode Character Inspector — Inspect any text character by character — code point, category, Unicode block, UTF-8/UTF-16 bytes, and HTML, JS, CSS, and URL escapes.
  • Bionic Reading Converter — Bold the leading part of each word to guide your eyes and speed up reading — with adjustable fixation and copyable HTML output.

Calculators & Converters

  • IPv4 Subnet Calculator — Compute network and broadcast addresses, host range, usable hosts, subnet mask, wildcard, and CIDR for any IPv4 address and prefix.
  • Calculator — A fast online calculator with Simple and Expert (scientific) modes and a running history — like the calculator on your phone, right in your browser.
  • Scientific Calculator — A full scientific calculator — trig, logs, powers, roots, factorial, constants, and memory — with keyboard support.
  • Percentage Calculator — Find a percentage of a number, increase or decrease by a percent, what-percent-of, and reverse percentages.
  • Unit Converter — Convert length, weight, data storage, temperature, volume, speed, area, and time.
  • Currency Converter — Real-time fiat and crypto currency conversion with live exchange rates.
  • Mortgage Calculator — Compute monthly payments, total interest, and an amortization preview for any loan.
  • Loan Calculator — Compute the monthly payment, total interest, and payoff time for any loan, with a full amortization preview.
  • Auto Loan Calculator — Estimate a car payment including down payment, trade-in, sales tax, and fees — see the amount financed and total cost.
  • Amortization Calculator — See a full payment-by-payment amortization schedule, and how much interest and time an extra monthly payment saves.
  • Payment Calculator — Solve for the monthly payment from a loan term, or the payoff time from a fixed monthly payment.
  • Simple Interest Calculator — Calculate simple interest and ending balance from a principal, rate, and time — with a compound-interest comparison.
  • Interest Rate Calculator — Back-solve the annual interest rate of a loan from its amount, monthly payment, and term.
  • Compound Interest — Project investment growth with recurring contributions across any compounding frequency.
  • Investment Calculator — Project an investment’s end balance from a starting amount, return rate, time, and recurring contributions.
  • Finance Calculator (TVM) — A time-value-of-money solver — compute future value, present value, payment, periods, or rate from the others.
  • Retirement Calculator — Project your retirement nest egg from current savings, monthly contributions, and expected return — and what income it supports.
  • Inflation Calculator — See how prices change over time using historical U.S. CPI between two years, or a fixed average inflation rate.
  • Crypto ROI Calculator — Calculate profit, ROI %, breakeven price, and annualized return for any crypto trade.
  • Creator Earnings Calculator — Estimate YouTube, TikTok, and Instagram creator earnings from views (RPM) or follower count and sponsored posts, with typical 2026 ranges per platform.
  • Aspect Ratio Calculator — Solve width or height for any aspect ratio — 16:9, 9:16, 4:5, 1:1, and custom — and get the simplified ratio. Lock one dimension and the other follows.
  • Engagement Rate Calculator — Calculate your social media engagement rate from likes, comments, saves, and shares against followers or reach — with industry benchmark bands.
  • Margin Calculator — Calculate gross profit, markups, and margins for retail or service pricing.
  • Income Tax Calculator — Estimate U.S. federal income tax, effective and marginal rates, and take-home pay by filing status (2024 brackets).
  • Salary Calculator — Convert pay between hourly, daily, weekly, bi-weekly, monthly, and annual using your hours and weeks worked.
  • Sales Tax Calculator — Add or remove sales tax — solve the net, tax, or gross amount from any two, at any tax rate.
  • Freelance Tax Estimator — Estimate self-employment and income tax owed on freelance revenue after deductions.
  • BMI Calculator — Compute body mass index from height and weight with WHO category breakdown.
  • BMR Calculator — Calculate your basal metabolic rate (Mifflin-St Jeor and Harris-Benedict) and daily calories at each activity level.
  • Daily Calorie Needs — Target daily calories for losing, maintaining, or gaining weight based on TDEE and goal.
  • TDEE Calculator — Estimate basal metabolic rate (BMR) and total daily energy expenditure using Mifflin-St Jeor.
  • Macro Tracker — Split daily calories into protein, carbs, and fat grams for any diet preset.
  • Body Fat Calculator — Estimate body fat percentage with the U.S. Navy method, plus fat mass, lean mass, and your fitness category.
  • Ideal Weight Calculator — Find your ideal body weight by the Robinson, Miller, Devine, and Hamwi formulas, plus your healthy BMI range.
  • Pace Calculator — Solve running pace, time, or distance — with speed and predicted finish times for 5K, 10K, half, and full marathon.
  • Pregnancy Calculator — Track gestational age, trimester, due date, and milestones from your LMP, due date, or conception date.
  • Due Date Calculator — Estimate your pregnancy due date from your last menstrual period or conception date, with current progress and milestones.
  • Conception Date Calculator — Estimate the conception date and fertile window from a due date or last menstrual period.
  • Age Calculator — Find exact age in years, months, and days between two dates, plus totals and a next-birthday countdown.
  • Date Difference Calculator — Days, weeks, months, and years between two dates — plus a business-day mode that skips weekends and your holidays.
  • Date Calculator — Add or subtract years, months, weeks, and days from a date to find the resulting date and day of week.
  • Time Calculator — Add or subtract durations in days, hours, minutes, and seconds — and convert a duration between time units.
  • Hours Calculator — Add up worked hours from start and end times with breaks — a quick timesheet with decimal hours and optional pay.
  • Epoch Converter — Transform Unix timestamps to human-readable dates and local timezones.
  • GPA Calculator — Calculate your weighted GPA from course letter grades and credit hours on a 4.0 scale.
  • Grade Calculator — Compute your weighted course grade from assignment scores, or the score you need on the final to hit a target.
  • Fraction Calculator — Add, subtract, multiply, and divide fractions with exact, simplified results — plus decimal-to-fraction conversion.
  • Triangle Calculator — Solve a triangle from any 3 known sides/angles (SSS, SAS, ASA, AAS, SSA) — all sides, angles, area, and type.
  • Standard Deviation Calculator — Compute mean, median, variance, and population/sample standard deviation from a list of numbers.
  • Random Number Generator — Generate cryptographically strong random integers or decimals in a range, with unique and sorted options.
  • Concrete Calculator — Estimate concrete volume for slabs, footings, and round columns in cubic yards or meters, plus the number of bags.

Image & Design Tools

  • CSS px ↔ rem/em Converter — Convert px to rem and em at a chosen root font size, both directions, with a handy quick-reference table — exact math, in your browser.
  • Color Converter & Contrast Checker — Convert colors between HEX, RGB, HSL, HSV, and OKLCH, and check WCAG AA/AAA contrast between any two colors — all live in your browser.
  • SVG Optimizer — Minify and clean SVG markup — strip comments, editor metadata, and whitespace, round coordinates — with a live before/after size readout and preview.
  • CSS Generator Suite — Visual sliders for gradients, box-shadows, and glassmorphism — copy production-ready CSS.
  • SVG → PNG Converter — Convert any SVG vector to a PNG raster at custom resolutions, with transparent or solid backgrounds.
  • Image → SVG (Trace) — Vectorize PNG, JPG, or WebP images into scalable SVG paths with adjustable color palette and detail.
  • Image Cropper, Resizer & Compressor — Crop to any aspect ratio, resize to exact dimensions, and compress JPG/PNG/WebP — all in your browser.
  • AI Background Remover — Erase backgrounds from portraits and product photos using a neural network that runs entirely in your browser.
  • Color Picker & Palette Generator — Pick exact pixel colors from any image with a magnifying loupe, extract its dominant palette, and export as Tailwind, CSS variables, SCSS, or JSON.
  • Image Watermark — Overlay custom text or a logo on your images with opacity, position, rotation, and tiling controls.
  • EXIF Viewer & Stripper — Read the EXIF, GPS, and XMP metadata embedded in a JPEG — then strip it out losslessly to protect your privacy.
  • Image Format Converter — Bulk-convert images between JPG, PNG, WebP, and AVIF with quality controls — download individually or as a ZIP.
  • Social Media Image Resizer — Crop or pad any image to exact 2026 platform sizes — Instagram 4:5, story/reel, TikTok, YouTube, X, Facebook, LinkedIn, Pinterest — with blur-fill backgrounds, Story/Reel safe-zone guides, and batch export.
  • Meme & Quote Card Maker — Add draggable text boxes and emoji stickers to any image, start from layout templates (classic, quote, two-label, demotivational poster), or make a color quote card. Export PNG or JPG, no watermark.
  • YouTube Thumbnail Maker — Design a 1280×720 YouTube thumbnail — background image, color, or gradient, bold stroked title text, alignment, and a corner badge. Exports PNG, rendered in your browser.
  • Fake Tweet & Chat Generator — Make parody/meme post cards and fake chat (iMessage/WhatsApp) conversations as PNGs — for satire and mockups, with a clear not-for-impersonation notice. Rendered locally.
  • Tweet to Image — Turn a post into a clean, styled image card — avatar, handle, verified badge, light/dim/dark themes, and metrics — for sharing screenshots. Rendered locally, downloads as PNG.
  • Carousel Maker — Design a multi-slide Instagram or LinkedIn carousel from text templates — pick a theme, write each slide, and export numbered images (ZIP) or a LinkedIn-ready PDF. Rendered in your browser.
  • Story & Reel Safe Zone Checker — Overlay Instagram, TikTok, and Shorts UI safe zones on a 9:16 frame so your text, faces, and logos aren’t covered by captions and buttons. Checked locally, exports PNG.
  • Instagram Grid Planner — Plan your Instagram feed: upload photos, drag to reorder them in a live 3-column profile mockup, and download the grid plan. Everything stays in your browser.
  • Image Grid & Carousel Splitter — Slice one image into an Instagram carousel (×3–×5) or a profile grid (3×3, 2×3, 4×3…), with panorama crop guides and a live profile-grid preview. Download every tile as a numbered ZIP.
  • Profile Picture Cropper — Crop any photo to a circle, rounded, or square avatar — add a story-gradient or solid ring, drop shadow, or in-browser background removal, and batch-export transparent PNGs at 256–1024px.
  • Blur Fit (Square / Story) — Fit a photo or video into a 1:1, 4:5, or 9:16 frame with a blurred, solid, or gradient background — no cropping. Adjustable blur/padding, optional border, batch images, and an FFmpeg video mode.
  • YouTube Thumbnail Downloader — Paste a YouTube link to grab its thumbnail in every resolution — up to full 1280×720 HD. Download, open in a new tab, or copy the direct image URL in one click.
  • Images to GIF Maker — Turn a batch of images into one animated GIF — drag to reorder frames, set the speed, size, and looping. Mixed sizes are normalized automatically. Encoded on your device, never uploaded.

Social Media Tools

  • Open Graph & Social Card Generator — Generate Open Graph and Twitter Card meta tags with a live link-preview for X, Facebook, LinkedIn, and Discord — plus title/description length warnings and an image-size validator.
  • Open Graph Image Generator — Design the 1200×630 social share image itself — background, title, description, logo, and accent — then download a PNG. Pairs with the Open Graph meta tag generator.
  • Link in Bio Builder — Build a free Linktree-style link-in-bio page — add your name, bio, avatar, and links, pick a theme, and download a standalone HTML page or share an editable link. No account, no hosting lock-in.
  • Fancy Text & Font Generator — Turn your text into 𝓯𝓪𝓷𝓬𝔂 Unicode fonts — bold, script, bubble, glitch/zalgo — plus decorative borders and an invisible blank-space character for Instagram, TikTok & X bios. Tap to copy.
  • Caption & Hashtag Counter — Count characters against Instagram, X, TikTok, LinkedIn, Threads, Bluesky, and more — each counted the way that platform counts — with a “… more” feed-cut preview and hashtag, mention, and emoji tallies.
  • Emoji Picker & Search — Search emoji, kaomoji text faces (◕‿◕), aesthetic symbols (stars, hearts, dividers), and ready-made emoji combos — pick a skin tone and tap to copy. Recently used are remembered.
  • Creator Earnings Calculator — Estimate YouTube, TikTok, and Instagram creator earnings from views (RPM) or follower count and sponsored posts, with typical 2026 ranges per platform.
  • Aspect Ratio Calculator — Solve width or height for any aspect ratio — 16:9, 9:16, 4:5, 1:1, and custom — and get the simplified ratio. Lock one dimension and the other follows.
  • Engagement Rate Calculator — Calculate your social media engagement rate from likes, comments, saves, and shares against followers or reach — with industry benchmark bands.
  • Social Media Image Resizer — Crop or pad any image to exact 2026 platform sizes — Instagram 4:5, story/reel, TikTok, YouTube, X, Facebook, LinkedIn, Pinterest — with blur-fill backgrounds, Story/Reel safe-zone guides, and batch export.
  • Meme & Quote Card Maker — Add draggable text boxes and emoji stickers to any image, start from layout templates (classic, quote, two-label, demotivational poster), or make a color quote card. Export PNG or JPG, no watermark.
  • YouTube Thumbnail Maker — Design a 1280×720 YouTube thumbnail — background image, color, or gradient, bold stroked title text, alignment, and a corner badge. Exports PNG, rendered in your browser.
  • Fake Tweet & Chat Generator — Make parody/meme post cards and fake chat (iMessage/WhatsApp) conversations as PNGs — for satire and mockups, with a clear not-for-impersonation notice. Rendered locally.
  • Tweet to Image — Turn a post into a clean, styled image card — avatar, handle, verified badge, light/dim/dark themes, and metrics — for sharing screenshots. Rendered locally, downloads as PNG.
  • Carousel Maker — Design a multi-slide Instagram or LinkedIn carousel from text templates — pick a theme, write each slide, and export numbered images (ZIP) or a LinkedIn-ready PDF. Rendered in your browser.
  • Story & Reel Safe Zone Checker — Overlay Instagram, TikTok, and Shorts UI safe zones on a 9:16 frame so your text, faces, and logos aren’t covered by captions and buttons. Checked locally, exports PNG.
  • Instagram Grid Planner — Plan your Instagram feed: upload photos, drag to reorder them in a live 3-column profile mockup, and download the grid plan. Everything stays in your browser.
  • Image Grid & Carousel Splitter — Slice one image into an Instagram carousel (×3–×5) or a profile grid (3×3, 2×3, 4×3…), with panorama crop guides and a live profile-grid preview. Download every tile as a numbered ZIP.
  • Profile Picture Cropper — Crop any photo to a circle, rounded, or square avatar — add a story-gradient or solid ring, drop shadow, or in-browser background removal, and batch-export transparent PNGs at 256–1024px.
  • Blur Fit (Square / Story) — Fit a photo or video into a 1:1, 4:5, or 9:16 frame with a blurred, solid, or gradient background — no cropping. Adjustable blur/padding, optional border, batch images, and an FFmpeg video mode.
  • YouTube Thumbnail Downloader — Paste a YouTube link to grab its thumbnail in every resolution — up to full 1280×720 HD. Download, open in a new tab, or copy the direct image URL in one click.
  • Subtitle Burner — Add and time captions, or import an .srt, then hard-burn them onto a video — font, color, outline, and position controls. Rendered on your device with FFmpeg, exports MP4.
  • Audiogram Maker — Turn an audio clip + a background image or color into a waveform video for feeds — square, portrait, story, or landscape. Rendered on your device with FFmpeg, exports MP4.

PDF & File Management

  • PDF Toolkit (Merge / Split / Organize) — Combine multiple PDFs, extract page ranges, reorder, rotate, or delete pages — entirely in your browser.
  • PDF to Images (PNG / JPG) — Render each page of a PDF as a PNG or JPG image with quality and DPI controls — download single pages or all of them as a ZIP.
  • Image to PDF — Combine multiple images (JPG, PNG, WebP, GIF, BMP) into a single PDF with page-size and orientation options.
  • PDF Compressor — Shrink PDF file size by downsampling page images or re-streaming with compact object streams and stripped metadata.

Video & Audio Tools

  • Video Trimmer & Muter — Trim a clip by start/end time or strip the audio track — processed on your device with FFmpeg WebAssembly, no upload.
  • Video to Audio Converter (Extract MP3) — Extract the audio track from any video as MP3, WAV, M4A, OGG, or FLAC — converted on your device with FFmpeg WebAssembly, no upload.
  • Audio Cutter & Joiner (MP3 Splitter) — Cut a section out of an audio file or merge multiple tracks into one MP3, WAV, or M4A — processed on your device, no upload.
  • Video Joiner (Merge Clips) — Combine multiple video clips into one file — fast stream-copy for same-source clips or re-encode for mixed formats, all in your browser.
  • Add Audio to Video — Attach one or more audio tracks to a video — replace the soundtrack or mix music and narration over the original sound, with no upload.
  • Video to GIF Converter — Turn a video clip into a high-quality animated GIF — pick the section, size, and frame rate; converted on your device, no upload.
  • Images to GIF Maker — Turn a batch of images into one animated GIF — drag to reorder frames, set the speed, size, and looping. Mixed sizes are normalized automatically. Encoded on your device, never uploaded.
  • Subtitle Burner — Add and time captions, or import an .srt, then hard-burn them onto a video — font, color, outline, and position controls. Rendered on your device with FFmpeg, exports MP4.
  • Audiogram Maker — Turn an audio clip + a background image or color into a waveform video for feeds — square, portrait, story, or landscape. Rendered on your device with FFmpeg, exports MP4.
  • Voice & Screen Recorder — Record your microphone, screen, or webcam right in the browser — pause/resume, live preview, instant download. Nothing leaves your device.
  • Audio Speed & Pitch Changer — Slow down or speed up audio without chipmunk effect, or shift the pitch by semitones without changing tempo — all on your device.
  • Video Frame Extractor (Video to Image) — Grab any frame of a video as a full-resolution PNG, JPEG, or WebP image — frame-step to the exact moment, all on your device.
  • Volume Booster & Normalizer — Boost quiet audio by up to 20 dB without clipping, or normalize tracks to streaming/podcast loudness standards — all on your device.
  • Audio Format Converter — Convert audio between MP3, WAV, M4A, OGG, FLAC, and OPUS — batch-convert multiple files on your device, no upload.