JSON, YAML, CSV, SQL, Regex — all the tools you need. 100% client-side, zero data leaves your browser.
Data uses js-yaml v4.1.0 and sql-formatter v15.3.1 (both SRI-verified via cdnjs). Your code is processed entirely in your browser — open your Network tab to confirm zero data is sent to any server. Strict CSP headers enforce no external connections beyond CDN dependencies.
Data is a free developer toolkit that bundles the tools you use every day: a JSON formatter and validator, YAML and CSV converters, a SQL formatter, a regex tester, and a Base64 encoder/decoder. Everything is processed locally in your browser, making it safe for API keys, config files, and other sensitive data.
Working with raw data is a daily reality for developers, data analysts, and IT professionals — and so is the habit of pasting that data into random web tools that may store or misuse it. Data removes that risk entirely: your JSON payloads, YAML configs, CSV exports, SQL queries, and test strings are processed locally on your own machine and never leave your browser. Whether you are debugging a REST API response, converting a config between formats, or tightening up a SQL statement, you get instant results with complete privacy.
When you paste API keys, database credentials, or configuration files into an online tool, you're trusting that tool's operator with your most sensitive data. Many free online formatters and converters send your data to their servers for processing, where it could be logged, stored, or even breached. For developers working with production data, this is a serious security risk.
Client-side tools like Data solve this by processing everything locally in your browser. Your data never leaves your device, making it safe for API keys, database connection strings, proprietary code, and any other sensitive information. You can verify this by opening your browser's Network tab — you'll see zero outgoing requests when using any of the tools.
JSON Formatter & Validator — Paste minified or malformed JSON and get beautifully formatted, indented output. The validator catches syntax errors, missing commas, and structural issues with clear error messages pointing to the exact problem location.
YAML/CSV Converter — Convert between JSON, YAML, and CSV formats. Useful when working with configuration files (YAML), data exports (CSV), or API responses (JSON). The converter preserves data structure during conversion.
SQL Formatter — Transform messy, minified SQL queries into readable, properly indented statements. Helps you understand complex queries, spot errors, and maintain consistent code style across your team.
Regex Tester — Test regular expressions against sample text with real-time match highlighting. See exactly which parts of your text match your pattern, making it easy to debug and refine complex regex patterns.
Base64 Encoder/Decoder — Encode text to Base64 or decode Base64 strings. Commonly used for embedding images in HTML/CSS, encoding API credentials, or transferring binary data over text-based protocols.
Data supports JSON, YAML, CSV, XML, SQL, Base64, and Regex all in one place. You can format, validate, and convert between formats.
No. All data processing happens locally in your browser. Nothing you paste, upload, or type is ever sent to any server. This makes Data safe for sensitive information like API keys and private configuration files.
Type a regular expression pattern and some test text. The tester highlights all matches in real-time, showing you which parts of the text match your pattern.
Since all processing is done in your browser, the effective limit depends on your device's memory. For most modern computers, files up to 100MB work well.
Yes! Data includes a JSON to CSV converter. Paste your JSON, configure the mapping, and download the result as CSV. The conversion is done entirely in your browser with no data sent to any server.
Base64 encodes binary data into ASCII text using 64 characters (A-Z, a-z, 0-9, +, /). It's commonly used to embed images in HTML/CSS, encode API credentials in HTTP headers, or transfer binary data over text-based protocols. Note: Base64 is encoding, not encryption — it provides no security.
Paste your JSON into the formatter and click Format. If there's a syntax error, the tool highlights the exact location with a clear error message. Common issues include missing commas, unquoted keys, trailing commas, and mismatched brackets. Fix the highlighted issue and try again.
Yes! Data is designed to be safe for production data. All processing happens locally in your browser with zero network requests. Your API keys, database credentials, and sensitive configurations never leave your device. You can verify this in your browser's Network tab.
The regex tester supports JavaScript regular expressions, including character classes, quantifiers, anchors, groups, lookahead/lookbehind, and flags like case-insensitive (i) and global (g). It highlights matches in real-time as you type.
Paste your minified or messy SQL query and click Format. The formatter parses your SQL, identifies keywords and clauses, and reformats with proper indentation and line breaks. This makes complex queries much easier to read and debug.
Data doesn't save your input or output to any server. For saving, you can copy the formatted output to your clipboard or use your browser's built-in save functionality. This design ensures maximum privacy — no data is ever stored externally.
Yes! Data works completely offline once the page has loaded. All processing happens locally in your browser with JavaScript. You don't need an internet connection to format JSON, convert data, test regex, or encode Base64.