LAS Converter comes in three forms: the website, a Windows app and an Android app. They share one account, but they are not identical. This guide explains what each is best at so you can pick the right one for the file in front of you, and so you do not waste time hitting a limit you could have avoided.
The short answer
- Use the website for quick jobs on files up to 500 MB: video to MP3, image conversion, compressing a clip, a Facebook download.
- Use the Windows app for big files, for YouTube downloads.
- Use the Android app when you work mostly from your phone.
The website
Open lasconverter.lasgconcept.com in any modern browser. Conversions run inside the browser using ffmpeg.wasm, a version of the ffmpeg tool compiled for the web. The consequence is that your file is not uploaded to the Converter server for those jobs. It also means the speed depends on your device, not on our server: a modern laptop is quick, and an old phone with a very large file can slow down or freeze. Close other heavy tabs for big jobs.
The website accepts files up to 500 MB. Free accounts can convert video to MP3 at up to 192 kbps, which is a good all-round setting for speech and music on phone speakers. Premium raises the ceiling to 320 kbps, extends video length (free is up to 20 minutes) and adds batch conversion, speech to text and subtitles.
Downloads from links are different. When you paste a Facebook link, a server has to fetch the video, so these requests do go through the LAS Converter server. The server sleeps when no one is using it, so the first download after a quiet period can take about a minute to wake up. After that it is fast. Free accounts can make 10 downloads a day at up to 720p; Premium allows 200 a day and higher qualities where Facebook offers them.
The Windows app
The Windows app runs on your own computer and is the answer to the two main website limits. It handles files bigger than 500 MB. And it can download from YouTube. YouTube blocks requests that come from servers, so the website cannot offer it; the Windows app downloads from your own internet connection, which works. Remember to respect YouTube's terms and only download what you have the right to keep.
The Android app
The Android app can be downloaded from the LAS Converter site and uses the same account and plan as the website. Choose it when you work mostly from your phone. As with the website, the limits of your plan apply, and a very large file on an older phone is better handled on a computer.
One account, one device at a time
You sign in with the same account everywhere, but you can be signed in on one device at a time. Signing in on a new device signs out the previous one. If you switch between laptop and phone often, expect to sign in again.
Which one for which job?
| Job | Best choice |
|---|---|
| Video to MP3, under 500 MB | Website (or either app) |
| Convert PNG, WebP or HEIC photos to JPG | Website (or either app) |
| Compress a video for WhatsApp | Website (or either app) |
| Video larger than 500 MB | Windows app |
| YouTube video | Windows app |
| Public Facebook video or reel | Website |
| Speech to text or subtitles (Premium) | Website |
Privacy in practice
Because conversions happen on your device, a private recording never has to leave it. Only link downloads use the server. Read our article on converting video to MP3 safely for what to look out for on other converter sites, and the LAS Converter overview for the full feature list.
When something goes wrong
If a conversion stalls on the website, try a smaller file, close other tabs or switch to the Windows app. If you paid for Premium and it did not start, contact the Converter support address with your payment reference. For step-by-step help with specific jobs, use the guides on the Converter site.
Written by Lawal Ayo. Spotted something out of date? Tell us and we will fix it. See our editorial standards.