Is it safe to paste sensitive data like API keys or tokens?

These tools process everything locally in your browser and never transmit or store what you paste. That said, treat any tool as a convenience, not a secrets vault, once you close the tab, the data is gone.

Do you store the JSON, code or passwords I generate or format?

No. Nothing entered into a developer tool is sent to or stored on a server.

Is there a size limit for JSON formatting or file conversion?

There's no fixed limit, but very large inputs (multiple megabytes) can be slow depending on your device.

Developer Tools

JSON formatting, Base64 encoding, hashing, UUIDs, regex testing and other everyday developer utilities, all running locally so you can safely paste code, tokens or config without it touching a server.

All Developer Tools

File Converter

Convert data files between CSV, JSON and TSV.

JSON Formatter

Format, validate and minify JSON.

Base64 Converter

Encode or decode text and files as Base64.

URL Encoder/Decoder

Encode or decode URLs and query strings.

Hash Generator

Generate SHA-1, SHA-256 and SHA-512 hashes from text or a file.

UUID Generator

Generate random UUIDs and GUIDs.

Password Generator

Create strong, random passwords.

Text Diff Checker

Compare two blocks of text and highlight the differences.

Word Counter

Count words, characters and estimated reading time.

Case Converter

Convert text between camelCase, snake_case and more.

Markdown Previewer

Write Markdown and preview the rendered output side by side.

Regex Tester

Test regular expressions against sample text.

Lorem Ipsum Generator

Generate placeholder Lorem Ipsum text.

Timestamp Converter

Convert between Unix timestamps and human-readable dates.

Color Picker & Palette Generator

Pick colors, convert formats, and extract a palette from an image.

Privacy

Every developer tool processes what you paste or type entirely in your browser. Nothing you enter, including code, JSON, tokens or generated passwords, is sent to or stored on a server.

Frequently asked questions

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