Free developer tools that never leave your browser
Convert, compress, and format files instantly. No sign-up, no uploads to a server — every tool runs entirely on your device.
Data Tools
CSV to JSON
Free CSV to JSON converter — convert CSV to JSON online instantly, with no upload and no signup. Runs entirely in your browser.
JSON to CSV
Free JSON to CSV converter online. Turn a JSON array into a CSV file for Excel or Google Sheets — no upload, no signup required.
JSON to YAML
Free JSON to YAML converter online. Convert JSON to clean YAML for Kubernetes configs and config files, entirely in your browser.
YAML to JSON
Free YAML to JSON converter online. Convert YAML config files to JSON for scripts and APIs — no upload, processed in your browser.
XML to JSON
Free XML to JSON converter online, with attributes preserved. No upload required — conversion happens entirely in your browser.
JSON to XML
Free JSON to XML converter online. Turn JSON objects into well-formed XML documents instantly, entirely client-side.
JSON Formatter
Free online JSON formatter and validator. Format, beautify, and minify JSON with syntax highlighting and instant error detection.
Image Tools
Compress PNG
Compress PNG online for free without losing quality. Shrink PNG file size instantly in your browser — no upload required.
Compress JPG
Compress JPG online for free. Reduce JPG/JPEG file size for faster websites and smaller uploads — processed entirely on your device.
Resize Image
Resize images online for free — PNG, JPG, or WebP. Set exact dimensions or a scale percentage, right in your browser.
PNG to WebP
Free PNG to WebP converter online. Convert PNG images to the smaller WebP format without losing transparency.
JPG to WebP
Free JPG to WebP converter online. Convert JPG/JPEG photos to WebP for smaller file sizes and faster page loads.
WebP to PNG
Free WebP to PNG converter online. Convert WebP images back to universally-supported PNG format instantly.
Image Converter
Free online image converter — PNG, JPG, and WebP, any direction. Convert images instantly in your browser, no upload needed.
PDF Tools
Merge PDF
Merge PDF files online for free, no watermark. Combine multiple PDFs into one document in your chosen order — no upload required.
Split PDF
Split PDF online for free. Extract pages or split a PDF into individual files, downloaded as a zip — no upload required.
Images to PDF
Free images to PDF converter online. Combine JPG or PNG images into a single PDF document in your chosen order.
Word to PDF
Free Word to PDF converter, no signup. Convert .docx to PDF with real selectable text, formatting, tables, and images.
PDF to Word
Free PDF to Word converter online. Convert PDF to an editable .docx document with headings, tables, and images reconstructed.
Developer Utilities
UUID Generator
Free UUID generator online. Generate random v4 UUIDs instantly, one or many at a time, right in your browser.
Hash Generator
Free online hash generator — MD5, SHA-1, SHA-256, and SHA-512. Generate a file checksum or text hash instantly in your browser.
Base64 Encode/Decode
Free Base64 encoder and decoder online. Encode text to Base64 or decode Base64 to plain text, entirely client-side.
JWT Decoder
Free JWT decoder online, no server required. Decode a JSON Web Token to inspect its header and payload instantly.
Regex Tester
Free online regex tester. Test JavaScript regular expressions against sample text with live match highlighting and capture groups.
Log Analyzer
Free online log analyzer — search log files or stack traces for keywords, entirely in your browser. No upload, no signup.