Base64 Decoder
Convert ASCII serialization formats back into high-fidelity visual streams. Secure, client-side decoding with instant viewport rendering.
Input Buffer
Viewport Inactive
Awaiting binary data sequence...
Decryption occurs entirely within your local browser's memory. No binary data ever leaves your station or touches our server infrastructure.
Missing data URI headers are automatically reconstructed based on stream heuristics. Supports PNG, JPEG, SVG, and GIF formats.
Instant Reconstruction
Transform long ASCII sequences into pixel-perfect images instantly. Essential for debugging data URIs in CSS or HTML.
File Stream Export
Convert base64 variables into physical image files. Extract assets from legacy databases or raw code snippets with one click.
Encrypted Privacy
Your sensitive data strings remain in your browser. We provide the logic; you maintain absolute ownership and security.
Privacy & Trust First
"Base64 encoding increases file size by approximately 33%, making it inefficient for large images. However, it's crucial for embedding small icons directly into HTML/CSS to reduce HTTP requests (optimizing First Contentful Paint). This tool reverses that process, letting you recover the original binary file from the text string."
Popular Searches
Convert Base64 strings back into visible images instantly. Axonix's secure, client-side decoder supports PNG, JPEG, GIF, and SVG formats, allowing you to debug data URIs and save assets directly to your device.
- 1Acquire a Base64 encoded image string from your database or source code.
- 2Paste the sequence into the 'Input Buffer' text field.
- 3If the string lacks a 'data:image...' prefix, our engine will assume PNG by default.
- 4Click 'RENDER STREAM' to transform the string into a visible image in the viewport.
- 5Verify the image attributes and visual integrity in the preview panel.
- 6Use 'EXPORT AS FILE' to save the decoded binary stream as a local image asset.
- Client-Side Buffer Management: High-performance decoding without server-side latency.
- Automatic Header Reconstruction: Heuristic detection of missing Data URI prefixes.
- Binary Stream Export: Direct-to-disk saving of decoded image data.
- Large Buffer Support: Optimized for handling massive base64 strings without browser hanging.
- Animate-Presence Viewport: Fluid transitions and error handling for corrupted data sequences.
Expert Use Cases
Recovering Database Assets
Extract and view images stored as Base64 text blobs in legacy databases (like MongoDB or MySQL) without writing a script.
Debugging API Responses
Visualize the image data returned by REST/GraphQL APIs that send files as JSON-embedded Base64 strings.
CSS & HTML extraction
Copy a 'data:image...' string from a website's source code and convert it into a standard PNG/JPG file for editing.
Email Attachment Forensics
Decode text blocks from raw email sources (MIME multipart) to view attached images securely.
Frequently Asked Questions
Learn More
Need practical guides, walkthroughs, and troubleshooting tips? Explore the Axonix blog for detailed tutorials.