Developer
JSON Formatter / Validator
Validate, format and compact JSON without uploading your input.
Open toolBase64 Encoder / Decoder
Encode UTF-8 text to Base64, or decode Base64 back to UTF-8 text.
Maximum 200,000 characters. Input is not stored.
Ready. Use Ctrl/β + Enter to run.
Completed and failed run counts are stored only on this device.
How to use this tool
Choose encode for text or decode for Base64. This tool is for UTF-8 text, not arbitrary binary files.
Supported input and limits
Invalid Base64 and invalid UTF-8 are rejected. Base64 is encoding, not encryption. Maximum main input: 200,000 characters.
Frequently asked questions
Does my input leave my browser?
No. A local worker processes it; text and files are not uploaded or stored.
Does encoding keep my data secret?
No. Anyone can decode Base64. Do not use it as encryption.
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