Category
Developer Tools
Fast browser-based helpers for debugging payloads, cleaning data, and validating time-sensitive values.
Tools
47 currently available
Audience
Frontend engineers, indie hackers, support teams, and technical marketers.
Business angle
High commercial intent keywords, strong return visits, and natural sponsorship fit from dev products.
Tools
Pick a tool
JSON Formatter
ToolFormat, validate, and minify JSON in your browser.
JWT Decoder
ToolInspect JWT headers and payloads without leaving the page.
Base64 Studio
ToolEncode and decode Base64 text with one compact utility.
Unix Timestamp Converter
ToolConvert Unix timestamps to readable dates and back again.
CSV JSON Converter
ToolConvert simple CSV tables to JSON and JSON arrays back to CSV.
URL Encoder Decoder
ToolEncode URLs and query strings or decode them back to readable text.
HTML Entity Encoder
ToolEncode HTML entities or decode escaped markup back to readable characters.
Regex Tester
ToolTest regular expressions against sample text and inspect matches.
Browser Info
ToolSee your browser, platform, language, viewport, and timezone details.
UUID Generator
ToolGenerate fresh UUIDs instantly in the browser.
Password Generator
ToolGenerate strong passwords with configurable character sets.
JSON Diff Checker
ToolCompare two JSON payloads and inspect changed keys quickly.
JSON Escape Unescape
ToolEscape JSON-safe strings or turn escaped text back into readable content.
JSON to TypeScript Interface
ToolGenerate a basic TypeScript interface from JSON data.
HTTP Status Lookup
ToolLook up common HTTP response codes and understand what they mean fast.
User Agent Parser
ToolParse user agent strings into browser, platform, and device details.
JSON Viewer
ToolView JSON structure, paths, and formatted output in one clean browser tool.
Hash Generator
ToolGenerate SHA hashes for text instantly in the browser.
UUID Batch Generator
ToolGenerate batches of UUIDs instantly for testing, seeding, and sample data.
JSON Schema Viewer
ToolTurn sample JSON into a readable schema-style view for faster handoff.
URL Parser
ToolBreak a URL into origin, path, hash, and query parameters instantly.
Cron Expression Builder
ToolPreview and explain 5-part cron expressions without leaving the browser.
HTTP Header Viewer
ToolParse raw HTTP headers into a cleaner key-value list for faster debugging.
JWT Expiry Checker
ToolDecode a JWT exp claim and see whether the token is still active.
SQL Formatter
ToolFormat SQL into a cleaner readable shape for faster review and sharing.
HTML Table Generator
ToolTurn simple comma-separated rows into a clean HTML table instantly.
SVG to CSS Background
ToolConvert an SVG snippet into a CSS background-image data URL.
CSS Clamp Generator
ToolGenerate fluid clamp values for responsive typography and spacing.
Email Obfuscator
ToolObfuscate email addresses into HTML entities and mailto links.
Webhook Payload Viewer
ToolInspect webhook JSON payloads in a cleaner key, type, and preview layout.
CSV Column Extractor
ToolExtract one column from a CSV block into a clean newline list.
CSS Grid Generator
ToolGenerate clean CSS grid snippets for responsive card and layout systems.
Regex Replace Tester
ToolTest search-and-replace regex patterns and preview the output instantly.
CSV Row Counter
ToolCount total rows, data rows, and columns from a CSV block instantly.
Query String Builder
ToolBuild URLs with clean query parameters without editing the string by hand.
Date Difference Calculator
ToolCalculate the day and week difference between two dates instantly.
UUID Validator
ToolCheck whether a UUID is valid and normalize it for safer reuse.
Text List Sorter
ToolSort text lists ascending or descending and optionally remove duplicates.
HTML Entity Decoder Pro
ToolDecode common named, numeric, and hex HTML entities into readable text.
Text Case Converter Pro
ToolConvert text into multiple naming and casing formats in one place.
Email Signature Preview
ToolBuild a lightweight HTML email signature and preview it instantly.
YAML Viewer
ToolTurn JSON into a clean YAML-style view for faster reading and handoff.
Number List Deduplicator
ToolDeduplicate number lists and optionally sort them for easier reuse.
Markdown Table Generator
ToolTurn simple rows into a clean Markdown table instantly.
UUID List Formatter
ToolClean and reformat UUID lists for code, docs, and data workflows.
Color Contrast Checker
ToolCheck contrast ratios and WCAG pass states between two colors.
CSV Header Extractor
ToolPull header names from a CSV block into a clean list instantly.
Guides
How to Format JSON for Faster Debugging
A simple workflow for validating payloads, spotting malformed keys, and pasting cleaner examples into docs or tickets.
How to Read JWT Claims Safely
Learn what a JWT header and payload mean, what a decoder can and cannot tell you, and how to explain tokens to stakeholders.
When to Use Base64 in Web Workflows
A practical introduction to Base64 for developers, support teams, and technical content writers.
How to Convert Unix Time Without Mistakes
Avoid the classic seconds-vs-milliseconds bug and make timestamp pages more helpful for technical searchers.
How to Convert CSV and JSON Quickly
A practical way to move between spreadsheet-style rows and lightweight JSON objects without opening a heavier app.
URL Encoding Basics for Links and APIs
Why URL encoding matters, when to use it, and how to avoid broken parameters in links and callbacks.
When to Encode HTML Entities
A quick guide to escaping markup safely for documentation, blog posts, and code examples.
Regex Testing Without the Guesswork
A simpler way to test patterns, understand matches, and reduce trial-and-error when working with regular expressions.
How to Collect Browser Details for Support
Use a browser info page to speed up troubleshooting without asking users to hunt through settings menus.
When to Use a UUID Generator
Common situations where fast, unique identifiers are useful in development, QA, and content examples.
How to Generate Better Passwords Fast
A simple guide to using longer, mixed-character passwords without overcomplicating the workflow.
How to Compare JSON Payloads Faster
A practical workflow for spotting field-level changes in API payloads, configs, and sample responses.
When to Escape JSON Strings
A quick guide to escaping string values safely for payload examples, docs, and copied snippets.
How to Generate TypeScript From JSON
Turn sample JSON into a starting interface quickly and then refine it as your data model becomes clearer.
HTTP Status Codes Explained for Debugging
A practical way to understand the most common response codes you will see in browser tools, logs, and API workflows.
How to Read User Agent Strings
Break a raw user agent string into browser, platform, and device clues without turning it into a long manual process.
How to Inspect JSON Structure Faster
Use a path-based JSON view to understand nested payloads more quickly than formatting alone.
When to Use a Browser Hash Generator
A quick guide to generating SHA hashes for sample values, comparisons, and lightweight technical workflows.
When to Use a UUID Batch Generator
Generate multiple unique IDs at once when you need sample data, seeded records, or quick testing fixtures.
How to Turn JSON Into a Simple Schema View
Use sample payloads to create a first-pass schema-style view that is easier to discuss and hand off.
How to Read URL Parameters Faster
Break long links into cleaner parts so campaign tracking, redirects, and page paths are easier to review.
How to Check Cron Expressions Quickly
Use a simple breakdown to make cron expressions easier to understand before you ship a schedule.
How to Review HTTP Headers More Clearly
Turn copied header blocks into a cleaner structure so cache rules, auth values, and content types are easier to review.
How to Check JWT Expiration Quickly
Decode the exp claim of a JWT so you can tell whether a token is still active without guessing.
How to Format SQL for Faster Reviews
Split major SQL clauses into cleaner lines so queries are easier to scan, discuss, and debug.
How to Make Simple HTML Tables Faster
Generate a basic table structure from simple rows when you need markup quickly for CMS pages and comparisons.
How to Use SVG as a CSS Background
Convert raw SVG into a CSS-friendly data URL when you want lightweight decorative assets in stylesheets.
How to Use CSS Clamp for Fluid Sizing
Generate fluid values for type and spacing so components adapt more smoothly across screen sizes.
When to Use an Email Obfuscator
A simple guide to entity-encoding email addresses when you want lighter contact publishing workflows.
How to Review Webhook Payloads Faster
Turn raw webhook JSON into a more readable structure when you need to inspect fields and event shapes quickly.
How to Extract One Column From CSV Fast
Pull one field out of a CSV export quickly when you need a clean list of emails, IDs, or names.
How to Generate CSS Grid Layouts Faster
Create practical responsive grid snippets more quickly when you need a clean starting layout for cards or content blocks.
How to Test Regex Replacements Safely
Preview search-and-replace transformations before you run them in code, scripts, or content workflows.
How to Check CSV Row Counts Quickly
Review row and column counts before imports, cleanup, or other spreadsheet-related workflows.
How to Build Query Strings With Less Friction
Combine base URLs and query parameters more cleanly when you need links for testing, tracking, or support workflows.
How to Calculate Date Differences Quickly
Check the gap between two dates faster when you are planning launches, timelines, or reporting windows.
How to Validate UUID Values Faster
Check whether an identifier is a valid UUID before you pass it into imports, demos, or support workflows.
How to Sort Text Lists More Cleanly
Turn messy newline lists into ordered, easier-to-scan output for cleanup and reuse.
How to Decode HTML Entities From Messy Text
Decode mixed HTML entities more quickly when copied text is cluttered with encoded characters.
How to Convert Text Between Common Cases
Switch text between human-readable and code-friendly casing formats faster when you are naming things across content and product workflows.
How to Preview Simple Email Signatures
Generate and review a lightweight HTML signature before copying it into an email client workflow.
How to Turn JSON Into a YAML Style View
Create a more human-scannable version of JSON when you need to share structured data with teammates.
How to Deduplicate Number Lists Quickly
Remove repeated numeric values and optionally sort the result before analysis or reuse.
How to Make Markdown Tables Faster
Generate Markdown table syntax quickly when you have simple rows and need cleaner docs output.
How to Format UUID Lists for Reuse
Clean and reshape UUID lists faster when you need them for scripts, docs, or QA workflows.
How to Check Color Contrast Before Launch
Review whether text and background color pairs meet common readability thresholds before a UI goes live.
How to Extract CSV Headers Fast
Pull out the header row quickly when you need field names for imports, mapping, or review.