Free File Converter Widgets

Add free file conversion tools to any website. Copy the embed code, paste it into your HTML, and give your visitors the ability to convert files directly on your site.

All tools run in the browser using WebAssembly. No server uploads, no API keys, no usage limits. Your visitors' files never leave their device.

Select a Tool

Audio Compressor

Free

Compress MP3, WAV, AAC, OGG, and FLAC files in the browser

Embed Code

<iframe
  src="https://www.filetoolworks.com/embed/compress-audio"
  width="100%"
  height="500"
  frameborder="0"
  allow="cross-origin-isolated"
  style="border: 1px solid #e5e7eb; border-radius: 8px;"
></iframe>
<p style="text-align: center; margin-top: 8px;">
  <a href="https://www.filetoolworks.com/compress-audio" target="_blank" rel="noopener" style="color: #6b7280; font-size: 12px; text-decoration: none;">
    Powered by FileToolWorks - Free Online File Tools
  </a>
</p>

How to Use

Copy the embed code above
Paste it into your HTML page where you want the tool to appear
Adjust the width and height values if needed
The attribution link is required for free usage

Preview full tool →

Why Embed Our Tools?

100% Free

No API keys, no usage limits, no hidden costs. Embed as many tools as you want on any number of sites.

Privacy First

All processing happens in your visitor's browser. Files never touch a server. No data collection.

No Setup Required

Just paste the embed code. No npm packages, no build steps, no server configuration. Works with any website.

Mobile Friendly

Responsive design that works on phones, tablets, and desktops. Touch-friendly drag and drop.

30+ Tools Available

Audio compression, image conversion, PDF merging, video tools, and more. All embeddable for free.

Fast and Reliable

Who Uses These Widgets?

Bloggers and Content Creators

Add an image compressor or format converter directly in your blog posts so readers can act on your tutorials immediately.

Web Developers

Embed file tools in client portals, internal dashboards, or documentation sites without building conversion logic from scratch.

Educators and Course Creators

Give students access to file conversion tools inside your learning platform. Great for multimedia and design courses.

Forum and Community Admins

Let your community members compress audio, convert images, or merge PDFs without leaving your site.

Frequently Asked Questions

Is this really free?

Yes. All widgets are free to embed with no usage limits. The only requirement is keeping the "Powered by FileToolWorks" attribution link.

Do my visitors' files get uploaded anywhere?

No. All file processing happens locally in the browser using WebAssembly. Files never leave your visitor's device. There is no server-side processing.

Can I customize the widget appearance?

You can adjust the iframe width and height to fit your layout. The widget itself uses a clean, minimal design that works well on most sites.

What platforms are supported?

Any platform that supports HTML embeds: WordPress, Squarespace, Wix, Webflow, Ghost, Hugo, custom HTML sites, and more. Just paste the iframe code.

Do I need an API key?

No. There are no API keys, no registration, and no authentication required. Just copy the embed code and paste it into your site.

Can I remove the attribution link?

The attribution link is required for free usage. It helps us keep these tools free for everyone. Please do not remove or hide it.

All Available Tools

Every tool on FileToolWorks can be embedded on your website. Here is the full list: