JSON Formatter
Format json with consistent spacing so it is easier to read, debug, and share.
Open tool pageDeveloper Tools
Discover Developer Tools inside Instant Free Web Tools, a library of quick web tools, fast online tools, and browser-based utilities for developers and everyday users.
Use this category when you are debugging an API response, checking a payload before a deploy, preparing copy for documentation, or trying to make raw machine output easier for humans to review.
Who these tools are for
Format payloads, inspect tokens, transform markup, and clean up code snippets without leaving the browser.
Related categories
Live tools in Developer Tools
These pages already include working browser interfaces, so they are good entry points if you want something usable right now.
JSON Validator
Validate json input and surface syntax problems before that content reaches production.
Open tool pageJSON Minifier
Compress json output by stripping unnecessary whitespace in a quick browser workflow.
Open tool pageJSON Beautifier
Beautify JSON with clean indentation and predictable spacing for payload reviews, debugging, and documentation.
Open tool pageCSV to JSON Converter
Convert csv into json with clear example output and a browser-first workflow.
Open tool pageJSON to CSV Converter
Convert json into csv with clear example output and a browser-first workflow.
Open tool pageDeveloper Tools library
Every page below links to a dedicated landing page with its own metadata, intro copy, FAQ section, and related tools.
JSON Formatter
Format json with consistent spacing so it is easier to read, debug, and share.
Open tool pageJSON Validator
Validate json input and surface syntax problems before that content reaches production.
Open tool pageJSON Minifier
Compress json output by stripping unnecessary whitespace in a quick browser workflow.
Open tool pageJSON Beautifier
Beautify JSON with clean indentation and predictable spacing for payload reviews, debugging, and documentation.
Open tool pageCSV to JSON Converter
Convert csv into json with clear example output and a browser-first workflow.
Open tool pageJSON to CSV Converter
Convert json into csv with clear example output and a browser-first workflow.
Open tool pageXML to JSON Converter
Convert xml into json with clear example output and a browser-first workflow.
Open tool pageJSON to XML Converter
Convert json into xml with clear example output and a browser-first workflow.
Open tool pageBase64 Encoder
Encode source text as base64 for safer transport, testing, or storage.
Open tool pageBase64 Decoder
Decode base64 content into a readable result without leaving the browser.
Open tool pageURL Encoder
Encode source text as url for safer transport, testing, or storage.
Open tool pageURL Decoder
Decode url content into a readable result without leaving the browser.
Open tool pageHTML Escape
Escape raw HTML-sensitive characters so markup can be shown safely inside docs, code examples, or CMS fields.
Open tool pageHTML Unescape
Restore escaped HTML entities into normal characters when you need to inspect or reuse the source.
Open tool pageJWT Decoder
Decode jwt content into a readable result without leaving the browser.
Open tool pageUUID Generator
Generate uuid output for planning, drafting, prototyping, or production prep.
Open tool pageMD5 Hash Generator
Generate a MD5 Hash from source text to compare values, verify content, or support quick development tasks.
Open tool pageSHA256 Hash Generator
Generate a SHA256 Hash from source text to compare values, verify content, or support quick development tasks.
Open tool pageTimestamp Converter
Convert between Unix timestamps, ISO dates, local time, and UTC output in one browser-based workflow.
Open tool pageUnix Timestamp to Date
Turn a Unix timestamp into readable UTC and local date output without leaving the browser.
Open tool pageDate to Unix Timestamp
Convert a calendar date and time into Unix seconds and milliseconds for logs, APIs, and scheduling.
Open tool pageRegex Tester
Test regex input against sample data and review the result in one place.
Open tool pageCron Expression Reader
Read cron expression syntax in plain language so the schedule or rule is easier to understand.
Open tool pageSQL Formatter
Format sql with consistent spacing so it is easier to read, debug, and share.
Open tool pageHTML Formatter
Format html with consistent spacing so it is easier to read, debug, and share.
Open tool pageCSS Minifier
Compress css output by stripping unnecessary whitespace in a quick browser workflow.
Open tool pageJavaScript Minifier
Compress javascript output by stripping unnecessary whitespace in a quick browser workflow.
Open tool pageText Diff Checker
Check text diff patterns and review the result with realistic examples.
Open tool pageLine Sorter
Sort line-based content into a stable order so lists, notes, and exports are easier to compare.
Open tool pageDuplicate Line Remover
Remove repeated lines while preserving the first useful occurrence, which helps clean pasted lists and exports.
Open tool page