developer tools · v1
$ Simple tools for JSON, SQL, sample data, types & secrets.
Vultio helps you format SQL, work with JSON, generate sample data, build types from JSON, and create secure secrets — all in one place, all in your browser.
12+
tools
browser
ships in
0 bytes
data sent
none
install
§ 01
~/formatting
Formatting tools
SQL FormatterFormat SQL queries and make them easier to read.↗JSON FormatterFormat raw JSON to make it easier to inspect.↗Compact JSONCompact JSON by removing whitespace, sorting keys, or stripping null fields.↗JSON MinifierRemove extra spaces from JSON and make it compact.↗XML FormatterFormat raw XML to make it easier to read.↗Timestamp ConverterConvert Unix timestamps to dates and back.↗Case ConverterConvert text between camelCase, snake_case, kebab-case, and PascalCase.↗JSON DiffCompare two JSON objects and highlight differences visually.↗Regex TesterTest and debug regular expressions with real-time match highlighting.↗JSON Schema ValidatorValidate JSON against a JSON Schema with detailed error messages.↗
§ 02
~/encoding
Encoding tools
Base64 Encoder / DecoderEncode text to Base64 or decode Base64 back to plain text, entirely in the browser.↗URL Encoder / DecoderEncode or decode URL components and full URLs directly in the browser.↗Hash GeneratorGenerate SHA-256 and SHA-1 hashes from text inputs.↗JWT DecoderDecode JWT header and payload locally in the browser.↗
§ 03
~/generation
Generation tools
Mock Data GeneratorCreate sample data in JSON, CSV, or SQL format.↗Type GeneratorConvert JSON into TypeScript interfaces or Go structs.↗Secret GeneratorGenerate passwords, API keys, and JWT secrets.↗UUID GeneratorGenerate single or bulk UUID v4 values in the browser.↗cURL ConverterConvert cURL commands to Python, JavaScript, Go, PHP, and Ruby code.↗cURL GeneratorBuild cURL commands from URL, method, headers, body, and auth options.↗
§ 04
principles
Why Vultio
↳ runs locally
Every tool processes input in your browser tab. Nothing is uploaded, nothing is logged. Safe for tokens, credentials and internal config strings.
↳ one job, done well
Each tool is scoped to a single task — format, encode, generate — so it loads instantly and produces an immediate result you can copy.
↳ no friction
No account, no install, no quota. Open the page, paste, get the result. Works offline after first load.
↳ for real workflows
Built for debugging API responses, preparing demo data, cleaning copied SQL, and the repetitive engineering tasks no one wants to do twice.