How it works
How to use the YAML to Base64
Paste input
Paste your YAML; it is validated first.
Encode
Optionally minify first and choose URL-safe output.
Copy the result
Use Swap to go the other way.
Why Base64?
Base64 represents any bytes using 64 safe ASCII characters, so YAML can travel through systems that only accept plain text — HTTP headers, environment variables, JSON strings or Kubernetes secrets. It makes data about 33% larger and is not encryption.
Built for developers
Why developers use it
Private by design
Runs 100% in your browser. Nothing you paste is uploaded, logged or stored on a server.
Instant results
Output updates as you type, with precise error locations when something is wrong.
Works offline
Once loaded, the tool keeps working without a connection. Install it as an app if you like.
Free, no sign-up
No accounts, no limits, no watermarks.
FAQ
Frequently asked questions
Is Base64 secure?
No. Base64 is an encoding that anyone can reverse. Never use it to hide secrets.
Is my data uploaded anywhere?
No. Everything runs locally in your browser — nothing you paste or open is sent to a server, logged or stored. The tool keeps working offline once the page has loaded.
Keep going
Related tools
- Base64 to YAMLDecode Base64 into YAML
- Base64 Encode / DecodeEncode and decode Base64 text and files
- YAML URL EncodePercent-encode YAML for URLs
- YAML URL DecodeDecode percent-encoded YAML
- JSON to Base64Encode JSON as Base64
- Base64 to JSONDecode Base64 into JSON
- JSON to YAMLConvert JSON to YAML and YAML to JSON
- YAML FormatterFormat and validate YAML while keeping comments