Data Converters – Base64, URL Encoding, Timestamps & More
9 toolsConvert, encode, and transform data between formats with fast browser-based utilities.
Data Converters tools
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Unix Timestamp Converter
Free Unix Timestamp Converter: turn epoch time into readable dates and back. Auto-detects seconds vs milliseconds, with timezone…
Auto-DetectionTimezone SupportJSON to TypeScript Converter
Free JSON to TypeScript Converter: paste JSON and get TypeScript interfaces or type aliases instantly. Handles nested objects,…
Deep NestingUnion & Optional TypesAge Calculator
Find your exact age in years, months and days, plus total days, weeks and hours lived and the countdown to your next birthday.…
Exact AgeAge on Any DateBase64 Encoder & Decoder
Encode text to Base64 or decode Base64 strings back to text. Supports standard and URL-safe Base64 encoding with browser-side…
Encode & DecodeURL-Safe Base64CSV to JSON Converter
Convert CSV to JSON or JSON to CSV instantly. Handles quoted fields, custom delimiters and headers, all processed in your browser.
Both DirectionsProper CSV ParsingDate Difference Calculator
Count the days, weeks, months and weekdays between two dates. Get the exact span in years, months and days. Free, fast and…
Exact SpanWeekdays and WeekendsJSON to YAML Converter
Convert JSON to YAML or YAML to JSON instantly. Validates your input and shows the exact line of any error, all processed in…
Both DirectionsLine-Level ErrorsPercentage Calculator
Calculate X% of Y, what percent one number is of another, percentage change, and increase or decrease by a percentage. Results…
Six Calculators in OneInstant ResultsURL Encoder & Decoder
Encode or decode URL components with JavaScript percent encoding. Handle spaces, reserved characters, and Unicode text locally…
Encode & DecodeSpecial Characters
Free Data Converters tools, no account needed
Convert, encode, and transform data between formats with fast browser-based utilities. Most tools are available without an account, but processing varies by tool. Some send your input to our service. Read our Privacy Policy for details.
This collection includes 9 free data converters tools. Each is built for quick results: open it, paste your input, get the output.