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Step 2: Submit a File or Data
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Drag, Drop and Done!

Converter App — Free Online File Converter Toolkit

Converter App is the easiest way to convert and transcribe files online—no account, no paywalls, just results. Turn bulky MKV, MOV, M4V or AVI videos into universally compatible MP4 so they play on any TV or device; extract audio, change formats, or convert Images, Documents and E-Books. Need a data hand‑off? Convert the files you use most to the formats most convenient for you with Converter App.

People choose us because it’s fast, dependable, and straight to the point. The interface is simple, the output holds its quality, and our transcription service turns long meetings and lectures into readable text with speaker‑friendly formatting. There’s nothing to install, no dark patterns, and you can run as many conversions as you like. Try converting a movie, exporting a calendar, or turning a Word document into a PDF and see why so many users call it their go‑to converter.

Efficient File Converters

Enjoy our efficient and user-friendly online file converters. Our tools, like the popular audio transcription server, are free, fast, and deliver precise results. They're designed to handle your conversion needs with care, helping millions smoothly transition between file formats, satisfying the needs of thousands of daily users.

100% Free — No Sign‑Up, No Limits

Converter App is free. Convert as many files as you like — no registration, no paywalls, no watermarks. Also, usually we don't apply file-size limits, fair-use caps may only apply in rare cases. Upload big files (> 1 GB) with confidence — Large video, hour‑long recordings, or oversized PDFs. If your connection holds, we’ll process it. Drag, Drop and Done!

Privacy - Your Data stays Yours

Your data stays yours. We don’t share it. To keep things simple and safe, any file you upload is automatically deleted after 120 minutes (two hours). No hidden copies, no surprises—just your work, then it’s gone.

Audio & Video Transcription

Transcribe audio and video to text with ease. Upload MP3, WAV, M4A, MP4, MKV, or AVI and get accurate transcripts without the usual headaches. Built for long recordings and large files. Try transcribing an MP4 or MP3.

→ Try MP3 to Text

API Preview

Interested in integrating our tools into your own projects? Our API will be coming soon. It will deliver a reliable framework for developers looking to enhance their software with our robust conversion solutions. Reach out if you want to try it already now; we might be able to provide you with early access depending on your needs right now.

→ Request API Access

Browser Plugins

Integrate Converter App with your favorite browser: Our Firefox and Chrome plugins make it easy to convert images like AVIF and WebP into more common formats right from your browser. It’s a quick and simple way to manage file conversions without leaving your web browsing experience.

→ Get Browser Plugins

Converter App overall conversion quality rating

4.8 / 5 (based on 9268 reviews )

You can submit your review after converting at least one file!

Frequently asked questions

Are my files private?

Yes. We use several measures to keep your data private:

Transfer: Encrypted over HTTPS.
Retention: Files auto-delete within 120 minutes of conversion.
Data use: Only for conversion — no selling, no training on your content.
Download Links: All download links stay private and unlisted.

Is Converter App free to use?

Yes—there's no sign-up and no watermarks. Generally, we do not apply any limits on file size or the number of conversions. However, in some special cases, we may apply fair-use limits to keep the service fast for everyone.

How do you keep Converter App free?

We operate as an ad-supported public utility. Revenue from advertisements allows us to cover our high server running costs and fund the ongoing development of our enterprise-grade conversion APIs. This model ensures we can provide unlimited file conversion to students, creators, and professionals at no cost, while strictly maintaining our commitment to never sell your data.

Do you keep a copy of my files?

No. We keep files only for the short time needed to complete your conversion and to deliver the result to you.

What file sizes and formats are supported?

We support common document, image, video, audio, and archive formats. You can also submit files larger than 1 GB. Very large files may take longer or require a retry.

Do I have to sign up to use Converter App?

No. Converter App won't ask for any personal information when you use our services. You can use them right away without an account. Drag, drop, and done.

Where can I read the full privacy policy?

You can find our Privacy Policy and Terms of Service here:

Privacy | Terms