All Tools
70 free browser converters and developer tools. All processing happens locally — your files are never uploaded.
HEIC to JPG Converter
Convert iPhone HEIC/HEIF photos to JPEG for email, Windows, and the web.
WebP to PNG Converter
Turn WebP images into PNG while preserving transparency for design workflows.
PNG to WebP Converter
Compress PNGs to WebP for faster pages and better Core Web Vitals.
JPG to PNG Converter
Convert JPEG photos to lossless PNG for editing and transparent overlays.
Image to Base64 Converter
Encode images as data URIs for CSS, HTML, and email embeds.
Base64 to Image Converter
Decode Base64 or data URIs into downloadable PNG or JPG files.
SVG to PNG Converter
Rasterize SVG icons and logos to PNG at your chosen scale.
Image Resizer & Compressor
Resize and compress images for uploads, email, and faster websites.
GIF Frame Extractor
Pull individual PNG frames from animated GIFs and download as a ZIP.
Browser Audio Converter
Convert WAV, MP3, and OGG privately for podcasts and voice notes.
Markdown to HTML Converter
Turn Markdown drafts and READMEs into clean HTML with live preview.
HTML to Markdown Converter
Migrate CMS HTML content into portable Markdown for docs and blogs.
Text Case Converter
Switch text between UPPER, lower, Title, camelCase, snake_case, and more.
CSV to JSON Converter
Parse spreadsheet CSV exports into JSON arrays ready for APIs and apps.
JSON to CSV Converter
Flatten JSON object arrays into Excel-friendly CSV downloads.
JSON Formatter & Validator
Pretty-print, minify, and validate JSON offline with clear error messages.
YAML to JSON Converter
Convert Kubernetes and CI YAML configs to JSON - and back again.
XML to JSON Converter
Map XML feeds and payloads into structured JSON with pretty printing.
PDF to Text Extractor
Extract searchable plain text from PDFs without uploading your documents.
Text to PDF Generator
Generate printable multi-page PDFs from notes, letters, or plain text.
URL Encoder & Decoder
Percent-encode and decode query strings and share links safely.
HTML Entity Encoder & Decoder
Encode and decode HTML entities for safe embedding of user content.
Client-Side Hash Generator
Compute MD5, SHA-1, SHA-256, SHA-384, and SHA-512 checksums for text or files locally.
UUID Generator
Generate bulk UUID v4 identifiers for databases, tests, and APIs.
Color Format Converter
Convert HEX, RGB, HSL, and HSV with a live swatch and CSS snippets.
Unix Timestamp Converter
Convert Unix epochs to human dates and ISO 8601 in UTC or local time.
Cron Expression to Human Readable
Explain cron schedules in plain English and preview upcoming run times.
Excel to JSON Converter
Read XLSX spreadsheets in the browser and export sheet data as JSON.
JSON to Excel Converter
Turn JSON arrays into downloadable Excel workbooks for non-technical teams.
QR Code Generator & Scanner
Create and decode QR codes offline for links, text, and Wi‑Fi strings.
PNG to JPG Converter
Convert PNG images to JPEG for smaller files and universal compatibility.
WebP to JPG Converter
Turn WebP images into JPEG for apps and email clients that still expect JPG.
JPG to WebP Converter
Compress JPEG photos to WebP for faster pages and smaller uploads.
HEIC to PNG Converter
Convert iPhone HEIC/HEIF photos to lossless PNG for editing and transparency workflows.
JSON to YAML Converter
Convert JSON configs to readable YAML for Kubernetes, CI, and docs.
JSON to XML Converter
Map JSON objects into XML for legacy APIs, SOAP, and feeds.
Base64 Encode & Decode
Encode and decode Base64 text with UTF-8 support for tokens, data URIs, and APIs.
Excel to CSV Converter
Export Excel sheets to CSV for scripts, databases, and imports.
CSV to Excel Converter
Convert CSV files into downloadable Excel workbooks for sharing with teams.
Image Rotator
Rotate images by 90°, 180°, 270°, or a custom angle - privately in your browser.
Password Generator
Generate strong random passwords with length and character-set controls.
Word Counter
Count words, characters, sentences, and estimate reading time instantly.
JWT Decoder
Decode JWT header and payload locally - signature is never verified or sent.
Regex Tester
Test JavaScript regular expressions with live matches and capture groups.
Text Diff Checker
Side-by-side GitLens-style diff with red removals, green additions, and synced scrolling.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal.
Unit Converter
Convert length, weight, temperature, and data-size units instantly.
Timezone Converter
Convert a date and time across UTC and major world timezones.
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences, or words for mockups and drafts.
SQL Formatter
Pretty-print SQL queries with readable keywords and line breaks.
JWT Generator
Create unsigned or HS256-signed JWTs locally from a JSON payload and secret.
HMAC Generator
Compute HMAC-SHA1/256/512 signatures for webhooks and API auth — privately on-device.
MD5 Hash Generator
Generate MD5 checksums for text or files entirely in your browser.
SHA-1 Hash Generator
Compute SHA-1 digests for legacy checksums and Git-style workflows.
SHA-256 Hash Generator
Generate SHA-256 checksums for text and files with Web Crypto.
AES Encrypt & Decrypt
Encrypt and decrypt text with AES-GCM derived from a passphrase (PBKDF2).
Random String Generator
Generate cryptographically random strings: hex, Base64URL, alphanumeric, or symbols.
Slug Generator
Turn titles into URL-safe slugs with separators and length limits.
URL Parser
Break a URL into protocol, host, path, query params, and hash — privately.
Line Sort & Unique
Sort, reverse, dedupe, and clean lines of text in one private workspace.
CSV to Markdown Table
Turn CSV spreadsheets into GitHub-flavored Markdown tables.
TSV ↔ JSON Converter
Convert tab-separated values to JSON arrays — and back again.
Delimiter Converter
Switch CSV-like data between comma, tab, semicolon, and pipe delimiters.
JSON Flatten & Unflatten
Flatten nested JSON to dotted keys, or rebuild nested objects from flat maps.
WCAG Contrast Checker
Check foreground/background contrast ratios against WCAG AA and AAA.
CSS Gradient Generator
Build linear or radial CSS gradients with a live preview and copy-ready CSS.
PX ↔ REM Converter
Convert px, rem, and em with a configurable root font size.
Box Shadow Generator
Tune CSS box-shadow with live preview — offsets, blur, spread, color, inset.
Markdown to PDF
Convert Markdown notes to a downloadable PDF entirely in your browser.
Find and Replace
Find and replace across documents with optional regex and case sensitivity.