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Developer Tools

Fast, free, privacy-friendly utilities that run entirely in your browser. Nothing you type is sent to a server.

Popular

JSON Formatter

Format, validate and minify JSON instantly in your browser.

Base64 Encoder / Decoder

Encode text to Base64 and decode it back, all client-side.

JWT Decoder

Decode and inspect JWT header and payload. Nothing is sent to a server.

UUID Generator

Generate random v4 UUIDs, one or many at a time.

Formatters

JSON Formatter

Format, validate and minify JSON instantly in your browser.

117 uses

Encoders & Decoders

Base64 Encoder / Decoder

Encode text to Base64 and decode it back, all client-side.

2.5K uses

URL Encoder / Decoder

Percent-encode and decode URLs and query strings.

990 uses

JWT Decoder

Decode and inspect JWT header and payload. Nothing is sent to a server.

3.7K uses

Generators

UUID Generator

Generate random v4 UUIDs, one or many at a time.

4.3K uses

Hash Generator

Generate SHA-1, SHA-256 and SHA-512 hashes in the browser.

3.7K uses

Password Generator

Create strong, random passwords with configurable rules.

2.3K uses

Lorem Ipsum Generator

Generate placeholder text for mockups and designs.

1.5K uses

Converters

Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates.

1.2K uses

Color Converter

Convert colors between HEX, RGB and HSL.

3.8K uses

Text & Web

Text Case Converter

Convert text between camelCase, snake_case, kebab-case and more.

95 uses

Word & Character Counter

Count words, characters, sentences and reading time.

298 uses