Featured. Rating: 4.9 out of 5 stars.
UUID / GUID v4 Generator
.Generate RFC-compliant Version-4 UUIDs (Universally Unique Identifiers) in bulk.
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Category Showcase
Developer Tools
JSON/XML/HTML/CSS formatters, minifiers, regex testers, cron parsers, cURL to fetch, and IP/DNS lookups.
Available Tools (25)
All tools in Developer Tools are 100% free and web-based
Trending. Featured. Rating: 4.9 out of 5 stars.
Regex Tester & Debugger
.Test and debug regular expressions with real-time match highlighting, groups, and flags support.
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Rating: 4.8 out of 5 stars.
Cron Expression Generator & Explainer
.Build and explain cron job schedule expressions with a visual UI — no memorizing syntax required.
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Rating: 4.7 out of 5 stars.
IP Address Lookup & Geolocation
.Look up any IP address to find its country, city, ISP, timezone, latitude, and longitude.
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Trending. Featured. Rating: 4.9 out of 5 stars.
JSON Formatter Online Free (Beautifier & Validator)
.Format, validate, beautify, and minify JSON data online for free with error detection and syntax highlighting. No login required.
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Trending. Rating: 4.8 out of 5 stars.
JSON to CSV Converter
.Convert JSON arrays to CSV spreadsheet format instantly with custom delimiter and header options.
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Rating: 4.8 out of 5 stars.
JSON to YAML Converter
.Convert JSON configuration files to YAML format and vice versa for DevOps and configuration management.
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Rating: 4.7 out of 5 stars.
HTML Code Formatter & Beautifier
.Format messy HTML code with proper indentation, tag alignment, and clean structure.
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Rating: 4.7 out of 5 stars.
HTML to Markdown Converter
.Convert HTML code into clean Markdown syntax for documentation, README files, and static site generators.
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Rating: 4.8 out of 5 stars.
CSS Minifier & Compressor
.Compress and minify CSS files by removing whitespace, comments, and redundant rules to reduce file size.
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Rating: 4.8 out of 5 stars.
JavaScript Minifier & Compressor
.Minify JavaScript code by removing whitespace, comments, and shortening variable names for production.
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Rating: 4.8 out of 5 stars.
JavaScript Formatter & Beautifier
.Beautify and format minified or poorly indented JavaScript code to readable clean format.
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Trending. Featured. Rating: 4.9 out of 5 stars.
SQL Formatter & Beautifier
.Format, beautify, and clean up messy SQL queries with customizable indentation and keyword casing (UPPERCASE / lowercase).
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Trending. Rating: 4.8 out of 5 stars.
YAML to JSON Converter
.Convert YAML configuration files to JSON data format and vice-versa instantly with real-time syntax validation.
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Trending. Featured. Rating: 4.9 out of 5 stars.
Cron Expression Generator & Explainer
.Build, parse, and translate complex 5-part and 6-part cron expressions into plain human-readable sentences with schedule previews.
Free Online · No Account.
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Trending. Featured. Rating: 4.9 out of 5 stars.
cURL to Code Converter
.Convert raw cURL command line requests into clean JavaScript fetch, Node.js, Python requests, Go, or PHP code snippets.
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Trending. Rating: 4.8 out of 5 stars.
CSV to JSON Converter
.Convert CSV spreadsheets or Excel exports into clean JSON array objects or key-value structures.
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Trending. Featured. Rating: 4.9 out of 5 stars.
Regex Pattern Generator & Tester
.Instant regex pattern generator and tester for email validation, phone numbers, URLs, credit cards, IP addresses, and dates.
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Rating: 4.8 out of 5 stars.
HTML Minifier & Formatter
.Compress HTML code by stripping whitespace, comments, and redundant attributes to boost website load speed.
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Rating: 4.9 out of 5 stars.
Markdown to HTML Converter
.Convert Markdown (.md) documents into clean, semantic HTML markup with live side-by-side preview.
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Trending. Rating: 4.9 out of 5 stars.
SQL Formatter & Beautifier
.Format messy SQL queries into clean, readable code with uppercase keywords and proper indentation.
Free Online · No Account.
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Rating: 4.8 out of 5 stars.
CSV to XML Converter
.Convert CSV data spreadsheets into structured XML data files with custom root and row tag names.
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Rating: 4.8 out of 5 stars.
XML Formatter & Validator
.Format, indent, and validate XML documents for syntax errors and unclosed tags.
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Trending. Rating: 4.8 out of 5 stars.
User Agent Parser & Lookup
.Parse HTTP User-Agent strings to identify browser name, version, OS, engine, and device type.
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Trending. Rating: 4.9 out of 5 stars.
Linux Chmod Permissions Calculator
.Calculate Linux file permissions in octal (755, 644) and symbolic notation (rwxr-xr-x) with interactive checkboxes.
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Free Developer Tools — No Account Required
All 25 tools in the Developer Tools collection on Toolifia are 100% free with no account registration, no email signup, and no credit card required. Every tool runs directly in your browser using client-side processing for instant results.
Why Use Toolifia's Developer Tools?
- 100% free — no hidden paywalls or subscription tiers
- No account or signup required to use any tool
- Runs entirely in-browser — no data uploaded to servers
- REST API access for every tool for developers
- Mobile-friendly responsive design