Image to Base64 Converter - Encode Images Online

Related Developer Tools

Base64 Encode/Decode Timestamp Converter QR Code Generator Lorem Ipsum Generator URL Encode/Decode Hash Generator Case Converter Word Counter Text Diff Color Picker UUID Generator Regex Tester JWT Decoder Markdown Preview HTML to Markdown Markdown to HTML YAML to JSON Cron Parser HTML Beautifier CSS Beautifier JavaScript Beautifier Password Generator SQL Formatter JSON to TypeScript Slug Generator Number Base Converter Chmod Calculator Escape/Unescape JSON Path Finder IP Address Tools Text to Binary HTML Entity Encoder Unicode Checker CSV Viewer XML Beautifier YAML Validator Remove Duplicates Base32 Encode/Decode String Length Text Reverse Hex Editor TOML Parser CSV to XML XML to CSV MD Table Generator Countdown Timer Random Number Random Picker Unit Converter ASCII Art Emoji Picker JSON to Go OG Preview HTTP Status Codes Regex Library CSS Gradient Box Shadow Favicon Generator HMAC Generator RSA Key Generator JSON to Rust JSON to Java JSON to Python AES Encrypt/Decrypt SHA-3 Hash TOTP Generator Password Checker Certificate Parser Excel to JSON SQL to CSV YAML Formatter Text to Speech Diff to Patch SVG Editor Crontab Generator Git Commands Docker Compose

What Is Image to Base64 Conversion?

Image to Base64 conversion encodes a binary image file as a Base64 ASCII string, allowing it to be embedded directly in HTML, CSS, or JavaScript without a separate HTTP request. The resulting data URL format is data:image/png;base64,... and can be used anywhere a URL is accepted.

How to Use

Drop an image onto the upload area or click to select a file.
The image is instantly encoded to Base64 in your browser.
Switch tabs to get the format you need: Base64, Data URL, CSS, or HTML.
Click Copy to copy the output.

Features

Supports PNG, JPG, WebP, GIF, SVG, and all browser-readable image formats.
Four ready-to-use output formats: raw Base64, data URL, CSS background, HTML img tag.
Live image preview after upload.
Runs entirely in your browser — no image is uploaded to any server.

FAQ

When should I use Base64 images?

Base64 embedding is ideal for small images like icons, logos, and placeholders. It reduces HTTP requests but increases file size by ~33%. For large images, serving them as separate files is more efficient.

Does SVG need to be Base64 encoded?

SVGs can be used as plain text in CSS/HTML, but Base64 encoding ensures compatibility across all browsers and contexts, especially in older IE versions and some email clients.

Is there a file size limit?

There is no hard limit in this tool — it runs entirely in your browser. However, very large images (over a few MB) will produce very long strings and may slow down rendering if embedded in HTML.