Developer Tools
A collection of free, privacy-first developer utilities built by Samuel. Use them online with one click—no signup, no data sharing required.
Why Use These Tools?
All tools run locally in your browser. No data is sent to any server, ensuring complete privacy and security.
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JSON Formatter & Validator
Format and validate JSON instantly in your browser.
JSONFormatterValidator
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CSV to JSON
Convert CSV data to JSON format easily.
CSVJSONConverter
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Base64 Encoder & Decoder
Encode/decode Base64 securely and quickly.
Base64EncoderDecoder
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URL Encoder & Decoder
Encode/decode URLs safely and privacy-first.
URLEncoderDecoder