Everything you need,
all in the browser.
33 browser-based utilities — JSON formatter, Unix timestamp converter, Base64, Diff checker, QR generator, simple calculator, unit converter, password generator, age & D-day calculators, loan & BMI calculators, and more — all client-side, no sign-up required.
Popular Tools
View All →JSON Formatter
Format, validate, and inspect JSON payloads directly in the browser without sending data to a server.
XML Formatter
Format, validate, and minify XML documents directly in the browser without uploading data to a server.
YAML ↔ JSON
Convert YAML configs into JSON and turn JSON payloads back into readable YAML directly in the browser.
CSV ↔ JSON
Turn CSV rows into JSON objects and convert JSON arrays back into CSV directly in the browser.
Regex Tester
Test regular expressions, inspect capture groups, and preview replacements directly in the browser.
Hash Generator
Generate SHA-family digests for text input directly in the browser, with hex and Base64 output ready to copy.
Query String Parser
Parse raw query strings or full URLs into JSON and turn JSON objects back into query parameters directly in the browser.
Unix Timestamp
Convert epoch timestamps to readable dates and turn human-readable dates back into Unix seconds or milliseconds.
Base64
Quickly encode text to Base64 or decode Base64 strings back into readable content in the browser.
JWT Decoder
Decode JWT header and payload segments in the browser so you can inspect claims without sending tokens to a server.
Diff Checker
Compare two text blocks with line-level and word-level highlighting to review edits, prompts, docs, or config changes.
Multiline to Oneline
Flatten multiline CLI snippets, shell continuations, and markdown-fenced command blocks into a single copy-ready line in the browser.
Update Note
View StatusSimple calculator added
Added a browser-based simple calculator for quick arithmetic expressions with decimals, parentheses, and the four basic operators, with the starter formula now shown as a hint instead of prefilled text.
Keyboard tool search shortcuts added
Added a global tool search palette on Ctrl/Cmd+K, slash-key search focus, header search hints, recent-tool suggestions, and stronger tool matching.
Dashboard page removed from the public site
Removed the public dashboard route and navigation entry, and redirected old dashboard visits back to the homepage.
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