Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text. Base64 encoding converts binary data to ASCII text, commonly used for embedding data in URLs, emails, HTML, and API payloads. The tool supports standard Base64 encoding.
What this tool checks
- Encode text to Base64
- Decode Base64 to text
- Input and output length reporting
Automate this with the API
Run this tool programmatically from your code. Get a free temporary API key with 200 requests — or register for unlimited access.
curl https://apixies.io/api/v1/base64?input=... \
-H "X-API-Key: YOUR_API_KEY"
Frequently asked questions
Is Base64 encryption?
No. Base64 is an encoding scheme, not encryption. It converts data to a text-safe format but provides zero security. Anyone can decode Base64 trivially. Never use it to protect sensitive data.
Why is the Base64 output longer than the input?
Base64 encodes 3 bytes of data into 4 ASCII characters, resulting in roughly 33% size increase. This is the trade-off for having a text-safe representation of binary data.
Explore more tools
View all 34 tools →