Tools that respect your data.
Fast utilities for everyday development, security, encoding, and data work. No account, no uploads, no waiting.
All tools
75 tools available
DNS Lookup
Inspect public A, AAAA, CNAME, MX, TXT, and NS records.
Open toolMX Lookup
Find mail exchangers, priorities, and their public IP records.
Open toolHTTP Header Checker
Inspect public response headers without downloading large pages.
Open toolWebsite Status Checker
Check reachability, response status, timing, and redirects.
Open toolRedirect Checker
Trace up to ten safe HTTP redirects and detect loops.
Open toolrobots.txt Checker
Read and summarize a public site’s robots.txt directives.
Open toolWhat Is My IP?
Show public request information exposed by Cloudflare.
Open toolJSON Formatter
Format, validate, and beautify JSON with clear, readable indentation.
Open toolBase64 Encoder
Encode Unicode text to Base64 without sending it over the network.
Open toolSHA-256 Generator
Create a SHA-256 digest using your browser’s native Web Crypto API.
Open toolUUID Generator
Generate cryptographically strong UUID v4 identifiers instantly.
Open toolUnix Timestamp Converter
Convert Unix timestamps to readable dates in UTC and your local time.
Open toolJSON Validator
Check JSON syntax and get helpful parsing errors.
Open toolJSON Minifier
Remove insignificant whitespace from valid JSON.
Open toolJSON Viewer
Explore JSON values in a readable nested tree.
Open toolBase64 Decoder
Decode Base64 into Unicode text.
Open toolURL Encoder
Percent-encode text for a URL component.
Open toolURL Decoder
Decode percent-encoded URL text safely.
Open toolSHA-512 Generator
Generate SHA-512 digests with Web Crypto.
Open toolMD5 Generator
Generate legacy MD5 checksums for compatibility.
Open toolPassword Generator
Generate passwords with cryptographically secure randomness.
Open toolPassword Strength Checker
Estimate password strength without transmitting it.
Open toolJWT Decoder
Inspect JWT headers and payloads without verifying them.
Open toolJWT Expiry Checker
Read a JWT exp claim and show its status.
Open toolHEX to RGB
Convert hexadecimal colors to RGB channels.
Open toolRGB to HEX
Convert RGB channels to hexadecimal color.
Open toolWord / Character Counter
Count words, characters, non-space characters, and lines.
Open toolJSON Diff / Compare
Compare nested JSON and identify added, removed, and changed values.
Open toolJSON to YAML
Convert JSON data into readable YAML.
Open toolYAML to JSON
Validate and convert YAML documents to JSON.
Open toolCSV to JSON
Convert delimited CSV rows into JSON objects.
Open toolJSON to CSV
Export arrays of JSON objects as CSV.
Open toolXML Formatter
Validate and indent XML markup.
Open toolYAML Validator
Check YAML syntax and structure locally.
Open toolCSV Viewer
Inspect pasted or dropped CSV in a responsive table.
Open toolText Diff
Compare text line by line with accessible change labels.
Open toolCase Converter
Convert text to camel, snake, kebab, title, upper, or lower case.
Open toolSlug Generator
Create clean URL slugs from titles.
Open toolRandom String Generator
Generate secure random strings with custom length and character sets.
Open toolLorem Ipsum Generator
Generate configurable placeholder paragraphs.
Open toolHTML Formatter
Indent HTML markup for easier review.
Open toolHTML Minifier
Remove safe, unnecessary whitespace from HTML.
Open toolCSS Formatter
Format CSS rules and declarations.
Open toolCSS Minifier
Minify CSS without sending source code anywhere.
Open toolJavaScript Formatter
Format JavaScript source for readability.
Open toolJavaScript Minifier
Remove comments and unnecessary JavaScript whitespace.
Open toolMarkdown Preview
Safely preview Markdown in a sandboxed document.
Open toolMarkdown to HTML
Convert common Markdown syntax to sanitized HTML.
Open toolHTML to Markdown
Convert common semantic HTML elements to Markdown.
Open toolRegex Tester
Highlight regular-expression matches and inspect capture groups.
Open toolCron Expression Generator
Build a five-field cron schedule with a readable explanation.
Open toolCron Expression Parser
Validate and explain five-field cron expressions in your timezone.
Open toolSQL Formatter
Format common SQL statements and clauses.
Open tool.env Formatter
Normalize and validate dotenv assignments.
Open toolchmod Calculator
Convert Unix numeric modes and symbolic permissions.
Open toolMIME Type Lookup
Look up common MIME types by extension or media type.
Open toolHTTP Status Code Lookup
Find standard HTTP status meanings by code or phrase.
Open toolCIDR Calculator
Calculate IPv4 CIDR network boundaries and host capacity.
Open toolSubnet Calculator
Inspect IPv4 subnet masks, wildcards, and usable ranges.
Open toolIPv4 Converter
Convert IPv4 addresses between dotted, integer, hex, and binary forms.
Open toolContrast Checker
Measure WCAG color contrast and show clear pass or fail results.
Open toolColor Picker
Pick a browser color and copy its HEX and RGB values.
Open toolHEX to HSL
Convert hexadecimal colors to HSL.
Open toolHSL to HEX
Convert HSL channels to hexadecimal color.
Open toolCSS Gradient Generator
Create and preview two-color CSS linear gradients.
Open toolQR Code Generator
Create downloadable QR codes for text, URLs, Wi-Fi, email, and phone.
Open toolQR Code Reader
Read QR codes from an image or camera entirely in the browser.
Open toolRemove Duplicate Lines
Remove repeated lines while preserving their first occurrence.
Open toolSort Lines
Sort lines alphabetically with locale-aware comparison.
Open toolReverse Lines
Reverse the order of lines without changing their contents.
Open toolShuffle Lines
Randomize line order using secure browser randomness.
Open toolTrim Whitespace
Remove leading and trailing whitespace from every line.
Open toolRemove Empty Lines
Remove blank and whitespace-only lines from text.
Open toolText Repeater
Repeat text a configurable number of times.
Open toolText Separator
Replace line breaks with a custom separator.
Open tool