Developer & Data Tools
Inspect data before changing it, then convert or format it for the next step. These tools cover JSON, YAML and CSV, web code, URL encoding, regex matching, file checksums and timestamps.
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Developer & DataCSS Minifier & BeautifierMinify, beautify and check CSS syntax locally with parser-based processing, license comment controls, accurate rule statistics and CSS exports.
Developer & DataCSV to JSON & JSON to CSV ConverterConvert CSV and JSON locally with delimiter controls, exact number handling, table previews, clear errors and file exports. Includes examples and…
Developer & DataFile Checksum CalculatorCalculate SHA-256 or SHA-512 checksums locally, compare expected values and download a file hash report. No file uploads. Includes examples,…
Developer & DataHTML Minifier & BeautifierMinify or beautify HTML locally with parser-based processing, protected script and preformatted content, byte-size statistics and a sanitized…
Developer & DataImage ↔ Base64 Converter (Encode & Decode Tool)Encode JPG, PNG, WebP and GIF files as Base64, HTML, CSS or JSON. Preserve original bytes or resize still images; decode and validate raw Base64…
Developer & DataJavaScript Minifier & BeautifierMinify or beautify JavaScript locally with parser-based processing, syntax feedback, optional cleanup, file opening and JS exports. Includes…
Developer & DataJSON Formatter & ValidatorInstantly format, minify, and validate your JSON code. Features include live preview, syntax highlighting, tree viewer, and structure stats.
Developer & DataJSON to YAML & YAML to JSON ConverterConvert JSON and YAML locally with exact numeric digits, readable editors, file opening, alias notes and copy/download. Uses YAML 1.2 core rules…
Developer & DataRegex TesterTest JavaScript regex patterns with highlighted matches, named capture groups and g/i/m/s/u flags. Local worker timeout, JSON reports, examples…
Developer & DataSVG OptimizerOptimize SVG icons and logos locally with SVGO. Compare artwork, preserve viewBox and accessibility, edit source, choose optimization profiles and…
Text & WritingText Compare / Diff CheckerCompare two texts locally with word or line highlighting, ignore-case and spacing options, change navigation and TXT, JSON or printable HTML reports.
Developer & DataUnix Timestamp ConverterConvert Unix seconds or milliseconds to UTC and local dates, or dates to timestamps. Includes current time, exact millisecond precision, batch…
Developer & DataURL Encoder, Decoder & InspectorEncode or decode URL components, whole URLs and form values locally. Inspect URL parts and repeated query parameters, with raw fields, clear…
Developer & DataUUID Generator & InspectorGenerate UUIDv4 and UUIDv7 batches locally with secure browser randomness. Copy IDs, export TXT, JSON or CSV, and inspect UUID versions and v7…
Anonymous search counters record result totals, never your search words.
Developer & Data workflow
Inspect the data
Validate JSON and read syntax or duplicate-key warnings.
Change its format
Move between a table and JSON while checking headers and value types.
Verify the file
Compare a downloaded file with a checksum from a trusted source.
Open the tool’s instructions for supported formats, limits and settings. Review the output before using or sharing it.