Online developer tools

JSON Formatter

Beautify, minify and validate JSON for APIs and logs.

CSV to JSON

Transform small datasets and testing payloads.

YAML to JSON

Convert configuration files between YAML and JSON.

Cron Generator

Create cron schedules for jobs and automations.

HTML Minifier

Compress HTML snippets, templates and page code.

HTML Entity Encoder

Escape and decode special characters for HTML snippets.

HTTP Status Codes

Reference common API, redirect and server responses.

MIME Type Lookup

Find content types for uploads, headers and assets.

CSS Minifier

Compress stylesheets and measure payload savings.

JWT Decoder

Inspect token header, payload and expiration locally.

Regex Tester

Test patterns, flags, matches and capture groups.

URL Encoder

Encode parameters and query strings correctly.

SHA Hash Generator

Create SHA hashes for examples, checksums and tests.

Color Converter

Convert HEX, RGB and HSL values for CSS and design systems.

Percentage Calculator

Calculate discounts, increases, ratios and percent changes.

Date Calculator

Count days between dates and calculate deadlines.

Unit Converter

Convert common units for documentation, QA and product specs.

UTM Builder

Create trackable URLs for campaigns, ads and newsletters.

XML Sitemap Generator

Generate sitemap.xml files from URL lists.

Robots.txt Validator

Review common crawl issues before publishing.

Base64 Encoder

Encode test credentials, tokens and strings.

Epoch Converter

Convert Unix timestamps for logs and databases.

Dummy Data

Generate users, UUIDs and text for mockups.