IT-TOOLS

TooliFyra's IT Tools is a free toolkit of 130 developer and productivity utilities that run 100% client-side. Convert formats, generate hashes and auth headers, check domains, build overlays and wrangle text — all instantly, with zero data leaving your browser.

📚 130 free tools — 100% client-side

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All IT-TOOLS Tools

cURL to Fetch API & Axios ConverterConvert cURL commands to JavaScript Fetch API or Axios requests instantly. Free online cURL to Fetch converter Code Snippet to Image GeneratorConvert code snippets into beautiful shareable images with syntax highlighting. Free online code to image gene CSS & JS Minifier / BeautifierMinify or beautify CSS and JavaScript code instantly. Free online CSS minifier, JS beautifier, and code format HTML to JSX ConverterConvert plain HTML to JSX format for React components. Free online HTML to JSX converter with class to classNa Robots.txt GeneratorGenerate robots.txt file for SEO crawling rules. Free online robots.txt generator with user-agent selection, a Simple API TesterTest REST API endpoints with custom headers, methods, and request bodies. Free online API tester with GET, POS Meta Tag & Social Card GeneratorGenerate complete meta tags for SEO and social media sharing. Free online meta tag generator with Open Graph, XML Sitemap GeneratorGenerate XML sitemap for better search engine indexing. Free online sitemap generator with URL priorities, cha DNS & WHOIS Lookup ToolPerform DNS lookups and WHOIS queries for any domain. Free online DNS lookup tool with A, AAAA, MX, CNAME, TXT CSS Gradient & Box Shadow GeneratorCreate CSS gradients and box shadows with live preview. Free online CSS gradient generator with linear, radial SVG OptimizerOptimize and compress SVG files online free by removing unnecessary code, comments, metadata, and empty groups SSL Certificate CheckerCheck SSL certificate details, expiry date, issuer, and certificate chain for any website. Free online SSL cer Favicon GeneratorGenerate favicon icons from text or images in multiple sizes. Free online favicon maker tool with 16x16, 32x32 YouTube Channel Banner Safe-Zone CheckerPreview YouTube channel banner across all devices with safe zone overlay. Free online YouTube banner safe-zone CSS Grid / Flexbox BuilderBuild CSS Grid and Flexbox layouts visually with live code output. Free online CSS grid builder and flexbox la OBS Overlay HTML GeneratorGenerate custom HTML overlays for OBS streaming with text, colors, and animations. Free online OBS overlay HTM Schema Markup GeneratorGenerate JSON-LD schema markup for SEO structured data. Free online schema markup generator supporting Article .htaccess GeneratorGenerate Apache .htaccess configuration files with redirect rules, security headers, caching, compression, and SSH Key GeneratorGenerate SSH key pairs (RSA, Ed25519) for secure server access. Free online SSH key generator with passphrase CSV to SQL INSERT GeneratorConvert CSV data to SQL INSERT statements. Free online CSV to SQL converter with table name input, delimiter o Nginx Configuration GeneratorGenerate Nginx server configuration blocks with SSL, proxy pass, gzip, caching, and security headers. Free onl HTML Table & Form GeneratorGenerate HTML tables and forms with custom rows, columns, styling, and input types. Free online HTML table gen JSON to Excel (XLSX) ConverterConvert JSON data to Excel XLSX spreadsheet format online free. Parse JSON arrays and objects into downloadabl Stream Bitrate CalculatorCalculate optimal bitrate for OBS streaming and recording. Free online stream bitrate calculator for Twitch, Y Mouse Sensitivity & DPI ConverterConvert mouse sensitivity between different games and DPI settings. Free online mouse DPI converter for CS2, V Crosshair Config GeneratorGenerate and customize gaming crosshair configurations for CS2, Valorant, and Fortnite. Free online crosshair Twitch/YouTube Chat Overlay GeneratorGenerate HTML chat overlay for OBS streaming. Free online twitch chat overlay and youtube chat overlay generat Iframe Embed GeneratorGenerate responsive iframe embed codes with custom width, height, border, scrolling, and fullscreen options. F HTML/JS Code ObfuscatorObfuscate HTML and JavaScript code for protection. Free online javascript obfuscator with light, medium, and h UTM Campaign Link BuilderBuild UTM-tracked campaign links for marketing. Free online UTM link builder with source, medium, campaign, te Blogger Meta Tag GeneratorBlogger meta tag generator free online - generate optimized SEO, Open Graph, and Twitter Card meta tags for Bl JSON to TypeScript Interface ConverterJSON to TypeScript converter free online - convert JSON data to TypeScript interface definitions with recursiv CSV to Markdown Table ConverterCSV to Markdown converter free online - convert CSV data to formatted Markdown tables with delimiter options, Duplicate Line Remover & SorterDuplicate line remover free online - remove duplicate lines from text, sort A-Z/Z-A, case-sensitive matching, Blogger Ads.txt GeneratorBlogger ads.txt generator free online - create ads.txt file for Blogger AdSense monetization with publisher ID Blogger Custom Sitemap BuilderBuild custom XML sitemaps for Blogger/Blogspot blogs. Free online blogger sitemap builder with post count cont CSS Sprite GeneratorCombine multiple images into a CSS sprite sheet online free. CSS sprite generator with padding control, sprite JSON to PHP Array ConverterConvert JSON data to PHP array format online free. JSON to PHP converter with pretty-printed output, var_expor Regex Match ExtractorExtract text matching regex patterns from input online free. Regex match extractor with flags control, matches Responsive Screen TesterTest website responsiveness across different screen sizes online free. Responsive screen tester with device pr Esports Tournament Bracket GeneratorGenerate tournament brackets for esports competitions online free. Esports bracket generator with single/doubl Zalgo Text GeneratorGenerate zalgo glitch text with combining characters online free. Zalgo text generator with intensity control, Random Token GeneratorGenerate cryptographically random tokens for API keys, sessions, and security. Free random token generator wit Markdown ToC GeneratorGenerate a table of contents from markdown headings online free. Markdown ToC generator with nesting levels, a Clan Tag CombinerCreate styled clan tags for gaming with brackets, pipes, dots, and unicode symbols. Free clan tag combiner wit Whitespace & Line Break RemoverRemove extra whitespace, tabs, and line breaks from text instantly. Free online whitespace remover and line br DNS Record LookupLookup DNS records for any domain including A, AAAA, MX, CNAME, TXT. WiFi Password GeneratorGenerate secure WiFi passwords with customizable length and complexity. CSS Keyframe Animation BuilderBuild custom CSS keyframe animations with live preview and code export. Hash TextHash text using MD5, SHA-1, SHA-256, SHA-512 algorithms instantly. BCrypt GeneratorGenerate BCrypt password hashes with customizable salt rounds. UUID GeneratorGenerate UUID v4 random identifiers in standard or uppercase format. ULID GeneratorGenerate Universally Unique Lexicographically Sortable Identifiers. Encrypt & Decrypt TextEncrypt and decrypt text using AES, DES, Triple DES algorithms. BIP39 Passphrase GeneratorGenerate BIP39 mnemonic seed phrases for cryptocurrency wallets. HMAC GeneratorGenerate HMAC signatures using MD5, SHA-1, SHA-256, SHA-512. RSA Key Pair GeneratorGenerate RSA public and private key pairs for encryption and decryption. Password Strength AnalyserAnalyse password strength with entropy calculation and crack time estimate. PDF Signature CheckerCheck PDF digital signatures, validity, and certificate details. Date & Time ConverterConvert between timezones, formats, and timestamps instantly. Integer Base ConverterConvert numbers between binary, octal, decimal, hexadecimal, and custom bases. Roman Numeral ConverterConvert between Roman numerals and decimal numbers instantly. Base64 String EncoderEncode and decode Base64 strings online with instant results. Base64 File ConverterConvert files to Base64 and decode Base64 back to downloadable files. Color ConverterConvert between HEX, RGB, HSL, CMYK, and named color formats. Case ConverterConvert text between camelCase, snake_case, PascalCase, kebab-case and more. Text to NATO AlphabetConvert text to NATO phonetic alphabet for clear communication. Text to ASCII BinaryConvert text to ASCII binary representation with spacing options. Text to UnicodeConvert text to Unicode code points with hex and decimal notation. YAML to JSONConvert YAML data to valid JSON format with error detection. YAML to TOMLFree online YAML to TOML converter. Parse YAML and convert to TOML format instantly for Rust, Python, Go, and JSON to YAMLConvert JSON data to clean YAML format with proper indentation. JSON to TOMLFree online JSON to TOML converter. Transform JSON data into TOML format instantly for configuration files, Ca TOML to JSONFree online TOML to JSON converter. Paste TOML configuration data and convert it to clean, structured JSON ins TOML to YAMLFree online TOML to YAML converter. Transform TOML configuration files into clean, readable YAML format for Ku XML to JSONFree online XML to JSON converter. Parse XML documents and convert them to structured, valid JSON with proper JSON to XMLFree online JSON to XML converter. Transform JSON data into well-formatted XML documents with proper element n Markdown to HTMLFree online Markdown to HTML converter. Transform Markdown text into clean HTML with live preview. Supports he URL Encoder / DecoderEncode and decode URLs and URL components with proper escaping. Escape HTML EntitiesEscape and unescape HTML special characters for safe rendering. URL ParserParse URLs into components: protocol, hostname, path, query params, hash. Device InformationDetect device info: OS, browser, screen, GPU, battery, network details. Basic Auth GeneratorFree online HTTP Basic Authentication header generator. Enter username and password to create the Authorizatio Open Graph Meta GeneratorGenerate Open Graph and Twitter Card meta tags for your website — og:title, og:description, og:image, og:url. OTP Code GeneratorGenerate time-based and counter-based one-time passwords (TOTP/HOTP). MIME Types ReferenceComplete reference of MIME types with search and copy functionality. JWT ParserDecode and inspect JSON Web Tokens including header, payload, and signature. Keycode InfoShow JavaScript keycode, key, and event info for any key press. Slugify StringConvert text to URL-friendly slugs with custom separator options. HTML WYSIWYG EditorRich text HTML editor with formatting toolbar and live preview. User Agent ParserParse and identify browser, OS, and device from User-Agent strings. HTTP Status CodesComplete reference of HTTP status codes with descriptions and categories. JSON DiffCompare two JSON objects and highlight differences with visual diff. Outlook Safelink DecoderDecode Microsoft Outlook Safe Links to reveal original URLs. Git CheatsheetEssential Git commands reference with examples and workflows. Random Port GeneratorGenerate random available ports for development with service detection. Crontab GeneratorGenerate and validate cron expressions with human-readable descriptions. JSON Prettify & FormatPrettify, format, and validate JSON data with syntax highlighting. JSON MinifyMinify and compress JSON online free by removing whitespace, comments, and unnecessary characters. View live s JSON to CSVConvert JSON array of objects to CSV format with proper escaping. SQL Prettify & FormatFormat and beautify SQL queries online free with keyword capitalization, proper indentation, and line breaks. chmod CalculatorCalculate chmod numeric values and permissions for files and directories. Docker Run to ComposeConvert docker run commands to docker-compose.yml configuration. XML FormatterFormat, indent, and validate XML documents with syntax highlighting. YAML Prettify & FormatPrettify and validate YAML documents with proper indentation. Email NormalizerValidate and normalize email addresses with typo detection and suggestions. Regex TesterTest regular expressions with live matching, groups, and replace functionality. Regex CheatsheetComprehensive regular expression reference with searchable patterns. IPv4 Subnet CalculatorCalculate subnets, CIDR ranges, and network details from IP addresses. IPv4 Address ConverterConvert IPv4 addresses between decimal, binary, hex, and octal formats. IPv4 Range ExpanderExpand CIDR notation to full IP range with host count calculation. MAC Address LookupLookup MAC address vendor and manufacturer from OUI database. MAC Address GeneratorGenerate random MAC addresses with unicast/multicast options. IPv6 ULA GeneratorGenerate IPv6 Unique Local Addresses for private networking. Math EvaluatorEvaluate mathematical expressions with functions like sin, cos, sqrt, log. ETA CalculatorCalculate estimated time of arrival from distance, speed, and start time. ChronometerFree online stopwatch and chronometer with lap times and countdown timer. Millisecond precision, start/stop/re Temperature ConverterConvert between Celsius, Fahrenheit, Kelvin, and Rankine temperatures. Benchmark BuilderRun browser performance benchmarks for math, strings, arrays, and DOM. Lorem Ipsum GeneratorGenerate placeholder lorem ipsum text with customizable length. Text StatisticsAnalyse text with word count, reading time, and character statistics. Emoji PickerSearch and copy emojis from all categories with recent history. String ObfuscatorFree online string obfuscator tool. Obfuscate and deobfuscate text using reverse, Base64, hex, ROT13, Atbash, Text DiffCompare two texts side by side with highlighted differences. Numeronym GeneratorFree online numeronym generator. Create numeronyms like accessibility (a11y) and internationalization (i18n) f ASCII Art Text GeneratorFree online ASCII art text generator. Convert text into large block-letter ASCII art with multiple fonts and s Phone Parser & FormatterFree online phone number parser and formatter. Detect country code and format to international, local, E.164, IBAN Validator & ParserFree online IBAN validator and parser. Validate IBAN format with MOD-97 checksum; parse country, check digits, Mera IP Address Kya HaiFind your public IP address, location, ISP and timezone instantly — sab aapke browser me. Domain Age CheckerFree domain age checker \\u2014 enter any domain to see registration date, domain age, expiry day counter, regi

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Frequently Asked Questions

Are these developer tools free?
Yes. All TooliFyra IT and developer tools are free, require no sign-up, and have no usage limits.
Is my data sent to any server?
No. Almost every tool runs fully client-side in your browser, so your code, text and data never leave your computer.
Which tools are included?
Formatters, converters for JSON, YAML, TOML, XML and CSV, encoders and decoders, generators, validators, hashing and debugging utilities for developers.
Can I use these tools at work?
Yes. The tools are free for personal and commercial use, including professional development work.