Tools

Developer tools catalog.

Search JSON, XML, YAML, URL, JWT, UUID, time, crypto and text utilities.

JSONJSON Pretty Print & Validator

Pretty print, minify, validate, edit and inspect JSON data.

JSONJSON Diff / JSON Compare

Compare two JSON documents and inspect structural differences.

YAMLJSON to YAML Converter

Convert small JSON and YAML examples for config debugging.

XMLXML Formatter & Validator

Format, minify and validate XML, SOAP and SVG snippets.

XMLXML to JSON / JSON to XML

XML and JSON conversion workflows.

YAMLYAML Formatter & Linter

Clean up YAML indentation and configuration whitespace.

URLURL Encoder/Decoder

Encode and decode URL components and query values.

URLURL Parser / Query String Parser

Parse URLs, query strings, fragments and builder inputs.

EncodingBase64 Encoder/Decoder

Encode and decode Base64 text in the browser.

ImagesBase64 Image Decoder

Inspect image Data URLs and MIME hints.

HTMLHTML Entity Encoder/Decoder

Escape and decode HTML entities safely.

JWTJWT Validator / Generator

JWT decoding, validation and test-token workflows.

IDsUUID / GUID Generator & Validator

Generate UUIDs and validate UUID/GUID format.

TimeTimestamp Converter

Convert Unix timestamps and readable dates.

TimeCron Expression Parser

Understand cron fields and common schedule examples.

CryptoHash Generator

Generate common hashes for checksums and debugging.

CryptoAES Encrypt/Decrypt

Test browser-based AES encryption workflows carefully.

SecurityPassword Generator

Generate random passwords for local development and test data.

CodesQR Code Generator

Create QR codes for short test URLs and payloads.

CodesBarcode Generator

Generate barcode test values for labels and forms.

CodeSQL Formatter

Format copied SQL snippets for debugging.

CodeHTML / CSS / JavaScript Formatter

Format HTML, CSS and JavaScript snippets.

MarkdownMarkdown Preview / Editor

Preview Markdown copied from docs and issues.

TextDiff Checker / Text Diff

Compare text snippets, logs and configuration files.

TextRegex Tester

Test JavaScript regular expressions with examples.

TextLorem Ipsum Generator

Generate placeholder text for layouts and fixtures.

BrowserUser-Agent Parser

Parse user-agent strings into browser and device details.

ReferenceMIME Type Lookup

Look up common MIME and Content-Type values.

ReferenceHTTP Status Codes

Review API and browser HTTP status codes.

ReferenceASCII Table

Inspect ASCII decimal, hex and character values.

No matching tools yet. Try a shorter query like JSON, URL, JWT, XML, YAML, diff, hash or formatter.