01 / Auto-detect
The video in your tab.
Open a video page. Hopper detects it, asks the companion for the available formats, and puts video, audio, or both one click away.
Video converter and downloader for Microsoft Edge and Firefox
Watch it. Download it. Keep it.
Hopper is a small extension for your Edge or Firefox toolbar. Save a video page, convert a file you already have, or trim a clip — on your own computer. No account, no cloud upload, and nothing running inside the pages you visit.
- Auto-detect
- Web downloads
- No account
- No cloud upload
Free in Microsoft Edge Add-ons and Firefox Add-ons, version 4.1.1. Video pages and direct links use the Windows companion, available as an unsigned direct download. Local file conversion works without it. The Android app is a direct APK on the download page.
Hopper
MP4
Trimmed
Drag a file in, spin the machine, or tap one. Tap a file to send it, then pick a format.
Auto-detect + web downloads
Finds the video, then fetches it.
No cloud upload
Your files stay on your machine.
No analytics
Nothing to opt out of.
Download from the web
The internet is the input.
Open a supported video page and let Hopper do the looking. Auto-detect finds the video, the companion fetches it over your own connection, and the file lands in your Downloads folder — no link hunting, no cloud middleman.
Video found
MP4 · best available · ready to save
Ready
Auto-detect in the extension. Fetching in the companion.
01
Open the page
Watch the video in your browser like you normally would. Hopper works from the tab you are already on.
02
Hopper finds it
The extension detects the video and asks the companion for the formats available on that page.
03
Download and keep
Pick video, audio, or both. It downloads from the web over your connection, straight to your Downloads folder.
The extension does the finding; the companion does the fetching. Both are needed for auto-detect and web downloads, and the companion is a direct, unsigned Windows installer on the download page. Local conversion works without it. Use Hopper only on media you have the right to download and keep.
The workbench
Everything you need. Nothing you have to send away.
Auto-detect, download, convert, and trim in one small popup. The page is the input, the file stays on your desk, and the result lands in your downloads folder.
02 / Convert
One file in. The format you need out.
Pick an output format and a quality level. The converter ships inside the extension, so a local file never needs another install.
03 / Trim
Start → end
Keep the part that matters.
Set a start and end time, or line up clips to merge. The rest stays out of the output.
Formats
Four formats. No guessing.
Choose the container that fits the job. Hopper handles the codecs so you can get back to the file.
01
Video
MP4
H.264 + AAC
A dependable video file for sharing, archiving, and playback.
Most compatible
.mp4
MP4. H.264 + AAC. A dependable video file for sharing, archiving, and playback.
The real popup
Small surface. Serious tools.
Real captures of the extension popup, framed at 400 px. No concept renders.
Privacy
Your file stays on your computer.
No account, no cloud upload, no analytics. Local conversion runs inside the extension, and preferences stay in local browser storage. Auto-detect and web downloads ask the companion for only the page you choose.
Windows 10/11 · unsigned installer
The download helper.
The companion is the small Windows app behind auto-detect and web downloads. It fetches the page you choose, keeps a queue, and stays out of the way. It is a direct download from this site. The installer is not code-signed, so Windows will warn; the SHA-256 is on the download page.
Questions
A few things worth knowing.
Short answers to the things people ask before installing.
Is Hopper free?
Yes. There is no account, subscription, or paid tier.
How does auto-detect work?
Open a supported video page and click Hopper. The Video tab reads the address of the tab you are already on, recognises the site, and asks the companion for the available formats. Nothing is injected into the page and nothing is read from it.
Can Hopper download videos from the web?
Yes, on supported video pages. Open the page, click Hopper, and auto-detect finds the video. The companion fetches the format you choose from the web over your own connection and saves it to Downloads. The companion is a direct, unsigned Windows installer on the download page; local file conversion works without it. Use it only on media you have the right to download and keep.
Does Hopper upload my files?
No. Local file conversion happens on your computer. Auto-detect and video downloads use the companion, which fetches the page you choose through your own connection.
Which formats can I choose?
MP4, WebM, MP3, and M4A. MP4 and WebM are video; MP3 and M4A are audio.
Do I need the companion?
For local file conversion, no. For auto-detect and video downloads, yes. The companion is a Windows app; get it from the download page. This build is unsigned, so Windows may warn.
Ready when you are.
Install Hopper from Microsoft Edge Add-ons or Firefox Add-ons, or take the APK for Android.