Base64 Decoder
Decode Base64 encoded data back to readable text.
Guide
How to Use the Base64 Decoder
Get the most out of this free tool.
Decode Base64 encoded strings back to their original text or binary content. Supports standard Base64 with padding. Detects and handles URL-safe Base64 variants. Essential for debugging API payloads, extracting encoded data, and working with data URIs.
Tips for Best Results
- Be specific with your inputs for more accurate results.
- Try different variations to compare outcomes.
- Use the copy button to save or share results.
Why This Tool Matters
This checker helps you save time, make data-driven decisions, and improve your business performance without expensive software or technical skills.
FAQ
Base64 Decoder FAQ
Common questions answered about this free tool.
What format is the output?
The decoder outputs the original text or binary content. For images, it provides a download link. For text, it shows the decoded string.
Does it handle URL-safe Base64?
Yes. URL-safe Base64 (using - and _ instead of + and /) is automatically detected and decoded correctly.
Are these developer tools free?
Yes, all our developer tools are completely free with no usage limits. Use them as much as you need for your development work.
Do you store my code or data?
No. All processing happens client-side in your browser. Your code and data never leave your device.
What is the maximum input size?
Most tools handle inputs up to several megabytes. For JSON formatter and validators, very large files (over 10MB) may cause slower performance.
Can I use these tools in my CI/CD pipeline?
These tools are designed for browser use. For programmatic access, we recommend using dedicated CLI tools or libraries.
Are the formatters configurable?
Yes, formatters typically include indentation settings (spaces vs tabs). JSON formatter supports different indentation levels.
What encoding standards are supported?
Base64 encoder/decoder supports standard Base64 with padding. URL encoder follows RFC 3986 encoding standards.
Can I validate JSON against a schema?
The JSON Validator checks syntax validity and structure. For JSON Schema validation, you would need specialized tools.
Are the CSS generators production-ready?
Yes, all generated CSS follows W3C standards and works in all modern browsers. Browser prefixes are included where needed.
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