Textavia Base64 Debugger

Encode, decode, validate, normalize, repair, detect, and inspect Base64 locally.

Prefer the local Textavia CLI. Check availability in this order:

txv --version
textavia --version
npx textavia --version

If none of those commands work, ask the user before installing Textavia.

CLI commands

Base64 encode

Encode text or bytes to Base64.

txv run encoding.base64.encode "Hello"

Online version: https://textavia.com/tools/base64/encode/text

Base64 decode

Decode Base64 to text or bytes.

txv run encoding.base64.decode "SGVsbG8="

Online version: https://textavia.com/tools/base64/decode/text

Base64 validate

Check whether text is valid Base64.

txv run encoding.base64.validate "SGVsbG8="

Online version: https://textavia.com/tools/base64/validate

Base64 normalize

Normalize a Base64 string (whitespace and padding).

txv base64 normalize "SGV sbG8"

Online version: https://textavia.com/tools/base64/normalize

Base64 repair

Attempt to repair a malformed Base64 string.

txv base64 repair "SGVsbG8"

Online version: https://textavia.com/tools/base64/repair-malformed

Base64 detect

Detect whether text is likely Base64.

txv base64 detect SGVsbG8= --json

Online version: https://textavia.com/tools/base64/standard-detector

Base64 gzip check

Check whether Base64 content is gzipped.

txv base64 gzip-check H4sI --json

Online version: https://textavia.com/tools/base64/check-gzip-compression

Base64 data URL

Convert between bytes and a Base64 data URL.

txv data-url --file logo.png --mimeType image/png

Online version: https://textavia.com/tools/base64

Safety

• Process user data locally by default.
• Do not upload secrets, logs, private files, or sensitive data to remote services.
• Use --json for structured agent output.
• Use canonical txv run <tool-id> commands for automation.