Need a quick way to encode files or text into Base64 — or decode Base64 back to readable text and files? Our Free Base64 Encoder/Decoder Tool does exactly that: fast, browser-based, and simple to use. Convert text, images, or files instantly with no installs, no sign-ups, and no limits.
Base64 encoding is a simple method of converting text, images, or binary data into a readable string made of letters, numbers, and a few symbols. It was created so computers could safely send and store data without it breaking or becoming unreadable.
Think of it like packing data into a universally understood “text-only box.” No matter where you send it — a browser, API, email, or database — Base64 keeps the information intact.
Base64 takes binary data (the 0s and 1s computers understand) and converts it into a set of 64 characters:
A–Z, a–z, 0–9, +, / and = as padding.
Here’s how it works behind the scenes:
The result is a clean, text-based string that can be stored or transmitted safely across different systems.
Base64 encoding is used everywhere, especially in web development and data transmission. Popular uses include:
If you’ve ever seen a long string starting with data:image/png;base64,… — that’s Base64.
Our Free Base64 Encoder/Decoder Tool is built for speed, simplicity, and complete user privacy. Here’s what makes it stand out:
Developers rely on Base64 because it solves compatibility issues between systems that handle data differently. It ensures that binary content can travel safely through:
Web developers use Base64 mainly to:
It keeps data clean, consistent, and corruption-free.
| Feature | Base64 Encoding | URL Encoding | Hex Encoding |
| Purpose | Convert binary → text | Make URLs safe | Represent bytes in hex |
| Character Set | 64 characters | ASCII/percent symbols | 0–9 + A–F |
| Use Case | Images, files, APIs | URLs, query params | Debugging, low-level dev |
| Output Size | ~33% larger | Similar to input | 2× input size |
| Human Readable? | Partially | Yes | Yes |
| Common In | HTML, CSS, JSON, MIME | Browsers, redirects | Programming, crypto |
A lot of people think Base64 is a security method — it’s not.
Base64 is not encryption, it’s just a text encoding technique.
Anyone can decode Base64 instantly using any free tool (like this one).
Base64 is used for formatting data, not protecting it.
Important points:
If you need actual security, you must use encryption (AES, RSA, etc.) — not Base64.
Perfect for developers, QA engineers, content creators, and anyone working with data transfer, APIs, or web embeddings. Use it for testing, embedding images in HTML/CSS, debugging API payloads, or safely transferring binary data as text.
⚡ Instant Encoding & Decoding: Convert text or files in seconds.
♾️ No Limits — Free Forever: Unlimited use with no hidden fees or caps.
🔒 Safe & Secure: Everything runs in your browser — no uploads or storage.
🧩 Supports Text & Files: Encode plain text, JSON, or file blobs (images, PDFs).
🛠️ Developer Friendly: Copy output easily for API testing, data URIs, or embeds.
✅ No Watermarks or Ads: Clean interface focused on functionality
1. Paste your text or drag-and-drop a file into the upload area.
2. Choose Encode to convert to Base64 or Decode to get the original content.
3. Click Process and view the result instantly.
4. Download decoded files or copy the encoded string to clipboard
This Free Base64 Encoder/Decoder Tool will always remain 100% free. No paywalls, no premium tiers, and no usage limits — convert as often as you need, forever.
We respect your privacy. All encoding/decoding happens locally in your browser — your data never leaves your device. No uploads, no logs, and no third-party storage, so your content stays private, safe, and secure.
Want more dev utilities? Try our more Free Tools or JSON Formatter & Validator or bookmark this tool for quick access — free, fast, and secure.
Yes — upload an image and choose Encode. You’ll get a Base64 data URI usable in HTML/CSS.
There are no intentional limits — browser memory may impose practical limits for very large files. For typical use, it’s unlimited.
Yes. Since processing is local, your data isn’t uploaded or stored on our servers.
Absolutely — Base64 strings are ideal for embedding binary data in JSON or API payloads
Yes — decoded files are downloadable in their original format when supported by the browser.