Change a video to the size a platform wants: TikTok, Reels, YouTube and square presets, plus custom and percentage sizes, with Fit, Fill and Stretch modes.
Your files are processed in your browser, on your own device. Nothing is uploaded to a server.
Every platform wants a different rectangle. This tool resizes a video to the size the destination demands, with presets checked in October 2026: 1080 by 1920 for TikTok and Reels, 1920 by 1080 for YouTube, 1080 by 1080 square, 1080 by 1350 for portrait feeds, plus custom dimensions and simple percentages when you have your own numbers.
The part most resizers get wrong is what happens when the shapes do not match, so the modes are named honestly. Fit keeps the whole picture and pads the gaps. Fill covers the frame and crops the overflow. Stretch forces the picture into the new shape and distorts it, and the warning sits on the option itself, because a stretched face is never what anyone wanted by accident.
1. Drop the video into the box, or click to choose it. The tool reads and shows its current size.
2. Pick a preset, or choose Custom or Percent and type your numbers.
3. Choose Fit, Fill or Stretch for how shape differences are handled.
4. Press Resize the Video and download the result.
You can, and the tool will not stop you, but be clear about what upscaling is: the same picture spread over more pixels. No detail is invented, because there is no detail to invent from. A 480p clip written at 1080p is a softer 1080p file that weighs more. Upscale when a platform demands the dimensions, not to gain quality that was never recorded.
The engine note: this runs a real encoder inside your browser. The first job downloads about 31 MB of engine files once, your browser caches them, and your video itself never leaves the device.
Resizing re-encodes, so under 200 MB and 10 minutes is the comfortable range. Output dimensions always land on even numbers, which codecs require. Platform sizes change from time to time, and the presets here carry their October 2026 check date on purpose. If part of the picture can go, cropping gives a sharper result than Fill for vertical versions. For making a file smaller rather than a frame smaller, the compress video page is the tool. All 23 tools are in the video tools collection.
Sites recompress what you upload, and they do it less kindly when the upload misses their preferred shape: a video delivered at the platform’s own dimensions and a sane bitrate survives their pipeline with visibly fewer artefacts than an odd-sized one they must scale and squeeze in a single pass. That is the practical reason the presets exist, and why delivering 1080 by 1920 to a vertical feed beats uploading a 4K landscape original and letting the platform improvise a crop around your subject’s ears.
1080 by 1920 pixels, a 9:16 vertical frame, as checked in October 2026. The preset sets it in one click, and Fit mode pads a landscape source rather than cropping it.
Fit shows the entire picture and fills the leftover space with bars. Fill covers the whole target frame and crops away whatever overflows. Neither distorts. Stretch does, and it is labelled as such.
You can write it at HD dimensions, but the picture will not gain detail. Upscaling spreads the recorded pixels thinner. It is worth doing only when a platform requires those dimensions.
Usually, when you resize down: fewer pixels need fewer bytes. Resizing up makes files bigger. To shrink a file at the same dimensions, use the compress tool instead. Resizing here works on one video at a time, so every result can be checked before you move on to the next.
Widths and heights are rounded to even numbers because video codecs cannot use odd dimensions. The change is at most one pixel.
No. It runs in your browser, and your video never leaves the device.
Same rules as this one: free, in your browser, with nothing uploaded.
Take the sound out of any video as an audio file.
The classic job. Video in, MP3 out.
Move between MP4, WebM and MOV without a fight.
A smaller video for WhatsApp, email and uploads.
Cut the dead seconds from the start and end.
Turn a short clip into a GIF that loops.
Any video file in, a plain MP3 of its sound out.
Join clips end to end into one video file.