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Developer
toolsOne job each, done properly

The small conversions that interrupt everything else: decode this string, format that blob, work out what the encoded thing in the log actually says. Each tool here does one of them, and explains what it did underneath.

Everything runs in your browser. Nothing is uploaded, nothing asks you to sign up, and there is no ad reading over your shoulder.

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1 tool

Base64 Encoder and Decoder

Encoding

Encode text to Base64 and decode it back in your browser. Handles UTF-8, URL-safe base64url and padding, and uploads nothing.

Open tool

On the list: JSON formatter, JWT decoder, URL encoder, Hash generator, UUID generator, Cron expression builder. Want one of them sooner? Tell us.