Compress Video on a Chromebook
Runs in Chrome. Nothing to install, so it works on managed school and work Chromebooks.
When you pick a video, this page sets a target size worked out from its resolution and frame rate. Change it with the percentage buttons or type a size in MB. The video is compressed on the Chromebook and never uploaded.
Free Video Compressor
No sign-up. No upload. No size limit.
Nothing is uploaded — the file is compressed on your device.
What ChromeOS gives you
The Gallery app plays videos. To edit one it sends you to Google Photos with Edit in Photos, and Google's help page notes that WebM files can't be edited there (Chromebook Help, checked September 2026).
Desktop compressors need the Linux environment. Google's setup page says that on a work or school Chromebook you might not be able to use Linux, and to ask your administrator (Chromebook Help).
Gmail takes attachments up to 25 MB on a personal account and replaces anything larger with a Google Drive link; work and school admins can set other limits (Gmail Help, checked September 2026). For a file that must go as an attachment, use compress to 25 MB.
Compressing in Chrome
Open the page and pick the video in the Files app; Drive files are under Google Drive in the same window (Chromebook Help). Tap 70%, 50%, 30% or 10% of the original, or click the After size and type a number in MB. Screen size lists Original and the steps below it. If the size you asked for needs a lower resolution, the panel selects it and marks that row with a dashed amber frame.
The Format list under Advanced only offers what this Chromebook can encode. MP4 (H.264) is the default. HEVC files, including iPhone clips shot in High Efficiency, open only if the Chromebook has a hardware HEVC decoder, because Chrome has no software HEVC decoder. Without one the page says "This browser cannot decode this video."
Downloads land in the Downloads folder on the Chromebook's own drive by default. The output is written to disk as it is produced, so files of several GB work as long as there is room for the result.
On a managed Chromebook
The page asks for no permissions and installs nothing, so it works under a school or work account unless the site itself is blocked. Nothing is uploaded. After the page has loaded it runs with no network, so a slow school connection does not matter.
Frequently asked questions
Do I need Linux or the Play Store?
No. It runs in Chrome.
Will it work on a school-managed Chromebook?
Yes, unless the administrator has blocked this website. It needs no extra permissions and installs nothing.
Why won't my iPhone video open?
It is probably HEVC. Chrome can only read HEVC with a hardware decoder, and some Chromebooks have none. On the iPhone, Settings > Camera > Formats > Most Compatible records H.264 instead.
Can I compress a video from Google Drive?
Yes. Pick it from the Google Drive section of the Files app, then save the result wherever you like.
Compress Video on a Chromebook
Opens the compressor with a target size computed for this page.