Developer utilities, browser-based
Developer tools that run entirely in your browser.
Format and validate JSON, test regex patterns, encode and decode data, generate UUIDs, and convert between formats. Each tool runs in your browser without uploading your input.
{ "status": "valid", "items": 15 }1716460800 -> 2024-05-23T08:00:00Zsha256("text") -> 982d9e...Choose a tool
Search the collection or browse by workflow. Each utility is focused, fast, and ready to use without an account.
JSON Formatter
Format, validate, minify, and inspect JSON payloads.
JSON Validator
Check JSON syntax, find parse errors, and copy clean output.
JSON Minifier
Remove JSON whitespace and see the size reduction.
JSON Viewer
Explore nested JSON in a tree and copy formatted output.
JSON Compare
Compare two JSON values with highlighted line differences.
JSON to CSV Converter
Turn JSON arrays into CSV you can copy or download.
JSON to YAML Converter
Convert JSON into readable YAML for configs and docs.
JSON Escape / Unescape
Escape JSON strings or decode escaped JSON text.
JSON Repair Tool
Repair common JSON syntax issues and copy beautified output.
Timestamp Converter
Convert Unix seconds, milliseconds, local time, UTC, and ISO values.
Base64 Encoder Decoder
Encode text to Base64 or decode Base64 back to text.
UUID Generator
Generate UUID v4 values for fixtures, records, and API examples.
Regex Tester
Test JavaScript regex patterns with flags, matches, and highlights.
URL Encoder Decoder
Encode query values or decode percent-encoded strings.
Markdown Preview
Preview Markdown headings, lists, links, emphasis, and inline code.
Color Converter
Convert HEX, RGB, and HSL with a live swatch.
Word Counter
Count words, characters, sentences, paragraphs, and reading time.
Image Compressor
Compress JPG, PNG, and WebP images with quality and width controls.
Password Generator
Create random passwords with length, symbol, and readability controls.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text.
JWT Decoder
Decode JWT header, payload, and claims in your browser.
Case Converter
Switch text between uppercase, title case, camelCase, snake_case, and more.
CSV to JSON Converter
Turn CSV tables into JSON arrays with delimiter and header options.
Lorem Ipsum Generator
Generate placeholder words, sentences, or paragraphs for mockups.
Fast by default
Open a tool, paste your input, copy the result. No account, no install, and no upload step for local-processing utilities.
Browse by workflow
Jump into the group that matches the job: data cleanup, text conversion, writing, image prep, security, or time debugging.