Developer-first utilities

Free Online Developer Tools

Fast, private and free tools for developers. Encode, decode, generate and work with data directly in your browser. No signup required.

Encoding & Decoding

Convert Base64 data without sending it to a server.

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Base64 Encoder

Convert plain text to Base64 instantly.

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Base64 Decoder

Turn Base64 strings back into readable text.

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Hash & Security

Generate common cryptographic hashes locally.

Hash Generator

Create MD5, SHA-1, SHA-256 and SHA-512 hashes.

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Text Tools

Measure and prepare text for content and interfaces.

Character Counter

Count characters, words, spaces, lines and paragraphs.

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Generators

Create a fair random selection from your list.

Random Name Picker

Pick one or more names at random from any list.

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JSON & Data

Inspect, format and validate developer data.

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JSON Formatter

Format and minify JSON.

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JSON Validator

Check JSON syntax.

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JWT Decoder

Decode JWT headers and payloads.

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Developer Utilities

Generate identifiers and work with URL components.

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UUID Generator

Create random UUID v4 values.

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URL Encoder

Encode URL components.

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URL Decoder

Decode URL components.

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Timestamp Converter

Convert Unix time, dates and ISO 8601.

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Security & Identity

Create secure credentials and inspect identifiers locally.

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Password Generator

Create strong passwords and passphrases.

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UUID Inspector

Read UUID version and timestamps.

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