Browser Dev Tools
Developer utilities that run entirely in your browser — format, convert, encode, hash, and test without uploading anything.
No Upload
100% Private
Works Offline
Free
Developer tools (21)
JSON Formatter
Beautify and format JSON data
JSON Minifier
Minify JSON to reduce payload size
JSON Validator
Validate JSON syntax instantly
CSV to JSON
Convert CSV data to JSON format
JSON to CSV
Convert JSON to CSV for spreadsheets
JSON to YAML
Convert JSON to YAML config format
YAML to JSON
Convert YAML config to JSON
CSV Formatter
Format and clean CSV data
YAML Formatter
Beautify and validate YAML
XML Formatter
Format and prettify XML documents
Base64 Encoder
Encode text or data to Base64
Base64 Decoder
Decode Base64 strings in-browser
URL Encoder
Encode URLs and query strings
URL Decoder
Decode percent-encoded URLs
UUID Generator
Generate random UUID v4 identifiers
MD5 Generator
Generate MD5 hashes locally
SHA256 Generator
Generate SHA-256 hashes in-browser
Regex Tester
Test regular expressions live
Text Diff Tool
Compare two texts and highlight differences
Line Counter
Count lines, words, and characters
Markdown to HTML
Convert Markdown to HTML in-browser
All processing happens in your browser.
Nothing is uploaded. Your data never touches a server.