datavo
🔒 100% client-side

Validate, convert, and generate data — entirely in your browser.

19 free developer tools. No signup, no upload limits, no tracking — your data never leaves your device.

🔍

Validators & Formatters

3

JSON Validator

Validate and pretty-print JSON with precise error locations.

Regex Tester

Test JavaScript regex patterns with live match highlighting.

SQL Formatter

Format and beautify SQL queries across common dialects.

Security & Identity

3

JWT Decoder

Decode a JSON Web Token's header and payload in your browser.

UUID Generator

Generate UUIDs (v4, v7, v1, nil) individually or in bulk.

Password Generator

Generate strong, random passwords with custom rules.

Encoders

3

Base64 Encoder / Decoder

Encode or decode text and files to/from Base64.

URL Encoder / Decoder

Encode or decode URL-safe text instantly.

Binary to Text Translator

Convert binary code to readable text and back.

Format Converters

10

CSV to JSON Converter

Convert spreadsheet data to JSON instantly.

JSON to CSV Converter

Convert a JSON array to CSV, with nested objects auto-flattened.

JSON to XML

Convert JSON data to XML format.

XML to JSON

Convert XML data to JSON format.

CSV to XML

Convert CSV data to XML format.

XML to CSV

Convert XML data to CSV format.

Excel to CSV

Convert XLSX spreadsheets to CSV.

CSV to Excel

Convert CSV files to XLSX spreadsheets.

Excel to XML

Convert XLSX spreadsheets to XML.

XML to Excel

Convert XML data to an XLSX spreadsheet.