Free tools that just work
Fast, private calculators and developer tools. Everything runs in your browser: no sign-up, nothing uploaded.
Work hours & pay
- Time Card CalculatorAdd up weekly hours from your time card or timesheet, with breaks, overtime and pay.
- Time Card Calculator with LunchEnter lunch out and back in, or deduct a fixed lunch in minutes. Handles multiple breaks.
- Biweekly Time Card CalculatorTwo-week time card with overtime counted correctly for each workweek.
- Hours CalculatorHours and minutes between two times, minus breaks. Add up shifts, decimal hours and pay.
- Clock Out Time CalculatorWhat time do I clock out? Clock-in time + hours + lunch, or work back from when you want to leave.
- Time CalculatorAdd or subtract hours, minutes and seconds, or find a time before or after another.
- Minutes to Decimal ConverterConvert minutes to decimal hours for payroll, with a full 1–59 minute chart.
Developer tools
- JSON Formatter & ValidatorFormat, beautify or minify JSON and find errors by line and column. Runs in your browser.
- JSON ViewerExplore JSON as a collapsible tree, filter keys and values, and copy the path to any node.
- JSON CompareCompare two JSON files: added, removed and changed values with paths. Ignores key order.
- JSON to CSV ConverterConvert JSON to CSV: nested objects flatten to columns, comma/semicolon/tab, opens in Excel.
- CSV to JSON ConverterTurn CSV rows into JSON objects. Detects the delimiter, numbers and true/false.
- JSON to YAML ConverterConvert JSON to clean 2-space YAML for Kubernetes, Compose and CI configs.
- YAML to JSON ConverterConvert YAML to JSON, with anchors, multi-document files and exact error lines.
- JSON to XML ConverterBuild indented XML from JSON: keys to elements, arrays repeat, @_ keys to attributes.
- XML to JSON ConverterConvert XML to JSON with attributes, repeated elements as arrays, CDATA and namespaces.
- Base64 DecodeDecode Base64 to text, or to an image, PDF or file. UTF-8, URL-safe and data URIs.
- Base64 EncodeEncode text, images and files to Base64 or a data URI, with URL-safe and wrap options.
- URL DecodeDecode percent-encoded text and URLs, with every query parameter listed.
- URL EncodePercent-encode text or URLs: encodeURIComponent, encodeURI or form (+ for spaces).
- JWT DecoderDecode a JSON Web Token, see when it expires and verify its signature, all in your browser.
- Unix Timestamp ConverterEpoch converter: current Unix time, timestamp to date and back, in seconds or ms, any time zone.