Free browser tools for developers & creators

Prettify, validate, and minify JSON in one click.

Generate JSON Schema from sample data.

Generate TypeScript types from JSON.

Convert between YAML and JSON formats instantly.

Format SQL with dialect-aware formatting.

Live Markdown editor with side-by-side HTML preview.

Create and export Mermaid diagrams live.

Encode and decode Base64 strings and files.

Decode and inspect JWT header, payload, and claims.

Convert between binary, hex, decimal & more.

Transform data between CSV, JSON, SQL, and TypeScript.

Test and debug regex patterns with live highlighting.

Compare text or code with side-by-side diff highlighting.

Generate MD5, SHA-1, SHA-256, SHA-512 hashes instantly.

Visualise JS bundle contents as an interactive treemap.

Generate realistic mock data for testing.

Encode and decode HTML entities instantly.

Prettify, minify, and validate HTML markup.

Prettify, minify, and sort CSS stylesheets.

Prettify and minify JavaScript & TypeScript code.

Visualize regex patterns as railroad diagrams.

Build git commands visually with options.

Visual builder for docker-compose.yml files.

Check bundle size of any npm package.

Convert SQL schemas to MongoDB, DynamoDB & Firestore.

Generate PR descriptions from git diffs.

Reduce image file size without leaving your browser.

Resize images to any dimension, locally and instantly.

Convert images between PNG, JPEG, WebP, and more.

Crop images with aspect ratio presets.

Add text or image watermarks to photos.

Batch watermark photos with text or logo.

Remove image backgrounds with browser-side AI.

Generate all favicon sizes from a single image.

Generate CSS sprite sheets from multiple images.

Convert HEIC photos to JPG or PNG client-side.

Export SVG to high-resolution PNG or JPG.

View, edit & strip EXIF data from photos losslessly.

Turn any photo into a professional headshot with AI.

Pick colors from any image — get HEX, RGB, HSL.

Convert images to Base64 data URIs and back.

Split sprite sheets into individual sprites.

Pick an emoji, get all favicon sizes instantly.

Extract text from images with browser-based OCR.

Generate pixel art game sprites and animations.

Make screenshots look beautiful with backgrounds, shadows & device frames.

Turn photos into beautiful low-poly triangulated art.

Preview how images look with different color vision deficiencies.

Create stunning photo collages with multiple layouts and style presets.

Rebuild photos as mosaics using tile images as pixels.

Reduce video file size without uploading to a server.

Trim and cut videos with a visual timeline editor.

Convert video clips to animated GIFs locally.

Record your screen directly from the browser.

Auto-detect and blur faces in video with browser-side AI.

Extract audio from video files.

Generate cinematic scrolling credits with 18 styles and export as video.

Burn subtitles into video with AI transcription or SRT import.

Generate SEO, Open Graph, and Twitter Card meta tags.

Preview how your URL looks when shared on social media.

Build a robots.txt file with a guided form.

Generate an XML sitemap from a list of URLs.

Generate a privacy policy for your site.

Test responsive design across device sizes.

Sort and lint Tailwind CSS classes.

Generate Schema.org JSON-LD structured data.

Generate SSH keys client-side — nothing leaves your browser.

Decode and inspect SSL/TLS certificates.

Build and validate Content Security Policy headers.

Verify file integrity with MD5/SHA checksums.

Detect true file types via magic bytes — catch disguised files.

Hide and extract secret messages in images.

View and edit raw file bytes with hex, ASCII, and offset columns.

Extract and categorize readable strings from binary files.

Convert colors between HEX, RGB, HSL, OKLCH, and more.

Build CSS gradients with a visual editor and live preview.

Visual CSS box-shadow builder with live preview.

Visual Flexbox playground with CSS output.

Visual CSS Grid layout builder with live preview.

Visual CSS border-radius editor with corner handles.

Generate harmonious color palettes from any base color.

Generate trendy glassmorphism CSS effects.

Build CSS keyframe animations visually.

Merge or split PDF files in your browser.

Convert PDF pages to PNG or JPG.

Combine images into a PDF document.

Create and export professional invoices.

Reduce PDF file size.

Add text watermarks to PDF pages.

Extract text content from PDF files.

Add password protection to PDF files.

Convert PDF files to Word (.docx) documents.

Reorder, rotate & delete PDF pages visually.

Add your signature to PDF documents.

Remove password protection from PDF files.

Separate songs into vocals, drums, bass & instrumentals.

Slow down music, loop sections, and isolate stems for practice.

View, play, and transpose MusicXML & MIDI files.

Convert text between camelCase, snake_case, etc.

Count words, characters & reading time.

Generate placeholder text for design and development.

Listen to any text read aloud with word highlighting.

Generate visual waveforms from audio files.

Remove background noise from audio files with ML.

Transcribe audio/video to text with AI — 100% in your browser.

Clone voices and generate speech with dual AI engines.

Record, transcribe, and summarize meetings with AI — 100% in your browser.

Turn music into flowing abstract paintings in real-time.

Transform text & images into ASCII art with wow effects.

Convert audio between MP3, WAV, OGG, FLAC & AAC.

Generate UUIDs in v1, v4, and v5 formats in bulk.

Generate strong random passwords with entropy scoring.

Generate customisable QR codes for URLs, text, and more.

Convert Unix timestamps to and from human dates.

Build and explain cron expressions visually.

Calculate Unix file permissions visually.

Diff and merge .env files securely.

Encode & decode URLs and URI components.

Convert length, weight, temp, data & more.

Convert font files between TTF, OTF, WOFF formats.

View, inspect, and convert 3D models in your browser.

Peer-to-peer file sharing via WebRTC and QR codes.

Calculate subnets, CIDR ranges, and IP addresses.

Translate cron expressions to human-readable text.

Scan QR codes from camera or images.

Measure download/upload speed with a live world latency map.

See what any price really costs in labor hours, PPP, and inflation.

Transfer text between devices through ultrasonic sound.

Visual drag-and-drop wedding seating chart with auto-arrange.

Auto-generate school timetables with conflict resolution.

Generate crypto wallets for BTC, ETH & SOL (dev only).

Encode, decode & validate blockchain addresses.

Generate, validate & derive keys from BIP-39 mnemonics.

Decode raw Bitcoin & Ethereum transactions.

Convert BTC, ETH & SOL units with full precision.

Visualize PoW mining with live SHA-256 hashing.

Visualize blockchain fork races and double-spend attacks.

Calculate percentages, increases, decreases, and tips visually.

Find exact age in years, months, days with visual timeline.

Visual BMI gauge with health categories and weight ranges.

Visual loan amortization with charts and payment schedules.

Convert hourly to annual salary with visual breakdowns.

Calculate tips, split bills, and see visual breakdowns.

Calculate GPA with grade distribution charts.

Visualize compound growth with interactive charts.

Animated countdown to any date with shareable links.

Measure WPM and accuracy with live visual feedback.

Instant charts from CSV/JSON data.

Interactive zoomable treemap from hierarchical data.

Beautiful scrollable event timelines.

Interactive flow diagrams with animated particles.

Interactive force-directed graph visualization.

GitHub-style contribution heatmap from your data.

Interactive project Gantt charts with dependencies.

Beautiful word clouds with custom shapes.

Visual org charts with multiple layout styles.

Tiny inline charts for embedding anywhere.

Chat with local AI models via WebGPU.