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25+ privacy-first developer tools. JSON formatter, Base64, UUID generator, LLM token counter, and more. All processing happens in your browser.

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Featured Tools

Hand-picked essentials

data_object

JSON Formatter & Validator

Format, validate and minify JSON online — processed entirely in your browser. Supports 2-space, 4-space and tab indentation.

Data Formats

password

Base64 Encoder / Decoder

Encode and decode Base64 strings. Supports text and file input. URL-safe variant available.

Encoding

fingerprint

UUID / ULID / NanoID Generator

Generate UUID v4, ULID, and NanoID identifiers. Supports bulk generation.

Generators

schedule

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Supports multiple timezones.

Date & Time

link

URL Encoder / Decoder / Parser

Encode, decode, and parse URLs. Extract query parameters and URL components.

Web

shield

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes. Supports text and file input.

Security

difference

Text Diff / Compare

Compare two text strings visually. Split and unified view. Syntax highlighting.

Text

difference

Regex Tester

Test regular expressions against sample text. Supports all flags. Pattern library included.