AMPDF

Developer tools

Developer Tools

Handy developer utilities that keep your data on your machine. Format and validate JSON, encode or decode Base64 and URLs, generate UUIDs, hash text, and convert between common data formats. Because everything runs client-side you can safely paste tokens, payloads and config without it leaving the browser tab.

All Developer tools (15)

JSON Formatter

Pretty-print, validate or minify JSON.

Base64 Encode / Decode

Convert text to and from Base64.

URL Encode / Decode

Percent-encode and decode URL text.

UUID Generator

Generate random v4 UUIDs.

Hash Generator

SHA-1 / 256 / 384 / 512 of text.

Lorem Ipsum Generator

Placeholder text for mockups.

JWT Decoder

Read a JWT's header and claims.

Text Diff Checker

Compare two texts line by line.

HTML Entity Encoder / Decoder

Escape or unescape HTML entities.

Color Converter

Convert HEX ⇆ RGB ⇆ HSL.

Data Size Converter

Bytes, KB/MB/GB, KiB/MiB/GiB.

Cron Expression Explainer

Explain a cron schedule in English.

Number Base Converter

Binary ⇆ octal ⇆ decimal ⇆ hex.

Password Generator

Strong random passwords, generated locally.

Line Sorter & Deduplicator

Sort, dedupe and trim a list of lines.