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Format JSON, encode Base64 and URLs, and generate UUIDs
Format and beautify JSON data instantly
Validate JSON data and find errors
Use toolMinify JSON to reduce file size
Use toolEncode text or files to Base64
Decode Base64 encoded strings back to text
Encode URLs and query parameters
Use toolDecode URL-encoded strings
Use toolGenerate UUIDs (Universally Unique Identifiers)
Use toolConvert Unix timestamps to dates and back
Use toolTest and debug regular expressions
Use toolCount words, characters, and sentences
Generate placeholder text for designs and layouts
Use toolCount characters, words, sentences, and paragraphs
Use toolCreate custom QR codes with your own colors
Use toolCreate strong random passwords instantly
Use toolPick colors and convert HEX, RGB, and HSL
Use toolWrite HTML and preview it live in your browser
Use toolWrite markdown and preview it rendered as HTML
Use toolEncode and decode base64 text instantly
Use toolAdvertisement
Every developer keeps a handful of utility sites bookmarked — JSON formatters, encoders, generators, and validators. Our developer tools cover the essentials: the JSON formatter pretty-prints and validates JSON, the Base64 encoder/decoder works for text and files, the UUID generator produces v4 UUIDs in bulk, and the QR code generator turns any URL or text into a scannable code. Rounding out the collection are a markdown preview, HTML preview, color picker, password generator, word and character counters, unit converter, and Unix timestamp converter.
The important detail is that these tools run entirely in your browser — paste API response, and your JSON never leaves your machine. That matters when you debug internal payloads or tokens. They are free, instant, and respect your privacy: nothing is uploaded, nothing is tracked. Next time you reach for a random online formatter, you know there is a dependable, private option right here.
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