How to use the JWT Decoder tool
- Paste the token, starting with eyJ…
- Read the decoded header, payload and time claims.
- Copy the payload JSON if you need it.
Frequently asked questions
Is it safe to paste a real token here?
Decoding happens entirely in your browser and nothing is sent anywhere. Still, treat live tokens like passwords and avoid pasting them into tools you don’t trust.
Does this verify the signature?
No. It only decodes the token. Verifying needs the secret or public key, and should happen on your server.
Are my files uploaded to a server?
No. HushConverts converts everything with code that runs in your browser, so your text and files stay on your device. You can even use most tools offline once the page has loaded.
Related guides
- What Is Base64 Encoding? A Plain-English Guide2 MIN READWhat Base64 is, how it turns bytes into text step by step, why it makes data 33% bigger, and where you meet it: data URIs, email, JWTs and APIs.
- Are Online File Converters Safe? What Happens to Your Files2 MIN READWhat happens when you upload a file to an online converter, the real risks for private documents, and how to check whether a tool processes files locally.
More encoding & developer
- Base64 EncodeTEXT → BASE64Turn any text into Base64.
- Base64 DecodeBASE64 → TEXTPaste a Base64 string to turn it back into normal text.
- Base64 to ImageBASE64 → IMAGEPaste a Base64 string or a full data:image URI to preview the image and download it as a file.
- Image to Base64IMAGE → BASE64Drop an image to get its Base64 in the format you need: a data URI, raw Base64, a CSS background rule or an HTML img tag.
- URL Encode / DecodeTEXT → URLMake text safe to put in a URL, or turn a percent-encoded string like %E2%9C%93 back into readable text.
- HTML Entity Encode / DecodeTEXT → HTMLEscape text so it displays literally in HTML, or decode entities such as &, < and © back into the characters they stand for.
- JSON Formatter & ValidatorJSON → JSONPaste JSON to pretty-print it, minify it, or find out exactly where it’s broken.
- JSON to CSVJSON → CSVTurn a JSON array of objects into a spreadsheet-ready CSV.