Getting Started
Use the header search or the home page to find a tool by name, category or task. Most tools follow the same pattern: paste input on the left, run the compact action button in the toolbar, then copy or inspect the output on the right.
Tool Categories
JSON Tools
Format, validate, minify, view and convert JSON data.
Formatters
Beautify and minify JavaScript, CSS, HTML, SQL and related code.
Converters
Convert between XML, YAML, CSV, JSON, HTML and Markdown.
Image Tools
Convert, resize and download images in common browser-supported formats.
Encoding
Encode, decode and generate data formats such as Base64, URLs, HTML entities, UTF-8 and QR codes.
Dev Tools
Compare files, test regex, inspect JSONPath or XPath expressions and generate cron expressions.
Generators
Generate UUIDs, fake data, random JSON and secure passwords.
Text Tools
Convert case, count words, remove duplicates, reverse strings, clean text and generate random strings.
Color Tools
Pick colors, convert color formats, check contrast and generate CSS gradients.
Data Handling
Most tools are browser-based and process your pasted input locally in the page. Avoid pasting passwords, private keys, production secrets or regulated personal data into any online tool unless you understand that tool's behavior.
The online clipboard is the main exception: it temporarily stores submitted text so another browser can retrieve it by ID. Clipboard content is intended to expire after 30 minutes.
Common Workflows
Debug API data: paste a response into the JSON Formatter, validate it, then use JSONPath Tester to inspect values.
Prepare content: convert HTML to Markdown, clean text, remove duplicates and count words before publishing.
Review changes: use File Diff or JSON Diff to compare two versions before shipping a change.
Generate fixtures: create fake data, random JSON, UUIDs or passwords for local testing and demos.
Online Clipboard
The clipboard tool lets you submit text and receive a temporary ID. Another page or browser can enter that ID to retrieve the text while it is still active. Do not use it for secrets, private keys, tokens or sensitive personal information.
Open Clipboard arrow_forwardTroubleshooting
Output is empty: confirm that the input matches the expected format and check any error message near the output area.
Large input feels slow: wait for the browser to finish processing, then use internal pane scrolling instead of page scrolling for long content.
A converter cannot preserve styling: HTML, Markdown, CSV, XML and YAML do not always represent the same information, so some structure may be simplified during conversion.