Web and developer tools
Regex tester, diff checker, JSONPath, XPath, cron, user agent, URL parser, htaccess, robots.txt.
- .htaccess Generator Generate the common Apache .htaccess rules: force HTTPS, www handling, clean URLs, caching, compression and security headers.
- .htaccess Redirect Generator Turn a list of old and new URL pairs into Apache redirect rules for a site migration.
- Black Screen One button turns the whole display into a flat black surface for checking a monitor, phone or TV.
- Blue Screen A flat blue field for testing the blue channel of a screen or providing a plain coloured backdrop.
- Cron Expression Generator Build a cron expression field by field, then check it in the parser.
- Cron Expression Parser Paste a cron expression and read what it means in plain English, along with the next run times.
- Diff Checker Paste two versions of a text and see every addition and removal highlighted, by line, word or character.
- JSONPath Tester Type a JSONPath expression and see the values it selects from your JSON, as you type.
- Meta Tag Generator Generate the title, description, canonical, Open Graph and Twitter Card tags for a page, ready to paste into the head.
- Multiple URL Opener Paste a list of addresses, check what was found, then open the whole batch in tabs with one press.
- Online Mirror Turn the camera in front of you into a mirror, with a flip switch, a few looks and a save button.
- Online Notepad A plain writing space that keeps what you type in this browser, with no account and no upload.
- Online Scoreboard A large two sided scoreboard with tap to add buttons, custom team names and a score that survives a refresh.
- Query String to JSON Turn a query string or full URL into a JSON object with values decoded and nested keys expanded.
- Red Screen A pure red field for checking the red channel of a display, or for lighting a room without ruining night vision.
- Regex Explainer Paste a regular expression and read a token-by-token explanation of what each part does.
- Regex Extract List every match of a regular expression, one per line, like grep -o in your browser.
- Regex Replace Replace every match of a regular expression, using capture groups in the replacement to reformat text.
- Regex Tester Type a regular expression and see every match highlighted in your text, with capture groups listed, as you type.
- robots.txt Generator Build a robots.txt with disallowed paths, an optional block for AI crawlers, and your sitemap.
- Share Link Generator Turn one page address into ready made share URLs for a dozen social networks and chat apps.
- Un-Google Link Unwrap redirect links from search results and social apps, then strip the campaign tags that ride along.
- URL Parser Break a URL into its protocol, host, port, path, query parameters and fragment.
- User Agent Parser Parse a user agent string into browser, version, engine, operating system and device type, or see your own.
- UTM Link Builder Add UTM parameters to a URL, correctly encoded, so campaign traffic shows up in analytics.
- Vibration Simulator Fire test patterns at the vibration motor in your phone and hear whether it still answers.
- WhatsApp Link Generator Convert one number or a whole column of them into click to chat links, with an optional first message.
- Where Am I Read the position of this device and get coordinates you can paste, plus a link straight to a map.
- White Screen A blank white display you can use as a soft light source, a tracing box or a panel uniformity check.
- XML Sitemap Generator Turn a list of URLs into a valid sitemap.xml with lastmod dates.
- XPath Tester Type an XPath expression and see the matching nodes from your XML immediately, with the count in the status.
- YouTube Looper Paste a video link, pick a start and an end, and replay just that section over and over.
Other categories
- JSON tools
- XML tools
- YAML tools
- CSV and TSV tools
- HTML tools
- CSS tools
- JavaScript tools
- SQL tools
- Code formatters
- Minifiers
- Validators
- Data converters
- Encoders and decoders
- Escape and unescape
- Hash and cryptography
- String and text tools
- Number tools
- Color tools
- Unit converters
- Date and time tools
- Generators
- Random data generators
- Image tools
- Compress and decompress
- Network and DNS tools
- Chart makers
- Cheat sheets
- Fun text tools
- Calculators