Encode and decode Base64 text and files instantly. URL-safe mode, file support. Free, no signup.
🔐 Open Base64 EncoderFree · No signup · No data stored · Instant results
The ToolForge Base64 Encoder and Decoder converts text and binary data to and from Base64 format instantly. Base64 is widely used in web development for encoding images in CSS, encoding credentials in APIs, and transmitting binary data over text-based protocols. Supports standard Base64, URL-safe Base64 and file encoding. All processing happens in your browser — data is never sent to any server.
Encode text to Base64 instantly
Decode Base64 back to plain text
URL-safe Base64 mode (replaces + and /)
Encode and decode files to Base64
One-click copy for encoded output
Handles Unicode and special characters
Standard and URL-safe encoding modes
Completely client-side — no data sent to server
Enter the text you want to encode or the Base64 string you want to decode.
Choose Encode or Decode and optionally select URL-safe mode.
Click Copy to save the output to your clipboard.
Encode API credentials, tokens and binary data for HTTP headers and requests.
Convert images to Base64 for embedding in CSS or HTML without separate file requests.
Encode Kubernetes secrets and configuration values for YAML manifests.
Learn about data encoding, binary representation and web protocols in computer science courses.
Base64 is an encoding scheme that represents binary data in ASCII string format. It is not encryption — it is encoding, meaning the original data can always be recovered by decoding. Base64 is used wherever binary data needs to be transmitted over text-based channels.
Common uses include encoding images to embed them directly in HTML or CSS (data URIs), encoding API authentication credentials in HTTP Basic Auth headers, encoding binary data in JSON APIs that only support string values, and encoding Kubernetes secrets in YAML configuration files.
URL-safe Base64 replaces the + character with - and the / character with _ making it safe to include in URLs without percent-encoding. This variant is widely used in JWT tokens, OAuth flows and other web security protocols.
All encoding and decoding in the ToolForge Base64 tool happens entirely in your browser using native JavaScript. No data is sent to any server, making it safe to use with sensitive credentials and tokens.
Base64 is an encoding scheme that converts binary data into a text string using 64 printable ASCII characters. It is used to transmit binary data over text-based protocols.
No. Base64 is encoding, not encryption. Anyone can decode Base64 instantly — it provides no security. Use it only for data formatting, not security.
URL-safe Base64 replaces + with - and / with _ to make the encoded string safe for use in URLs without percent-encoding. Used in JWT tokens and OAuth.
Yes. The file encoding feature lets you select a file and get its Base64 representation for use in data URIs or API payloads.
Yes, completely free. All processing happens in your browser — data is never sent to any server.
Free · URL-Safe Mode · File Support · No Signup
🔐 Open Base64 Encoder