Social Media Video Resizer

Choose a video, or drop it on the page. It opens straight away because nothing is uploaded. MP4, MOV, WebM and MKV up to 100 MB and 2 minutes.

Tick the platforms you are posting to. The tool shows how many files it actually needs to make, because several platforms share the same size.

Pick how the video should fill the frame - crop, fit, blurred background or stretch - then drag the picture in the preview to choose what stays. Turn on the safe-area guides to see where captions and buttons will sit.

Choose 1080p, 720p or 480p, the frame rate, whether to keep the audio and a target file size if you need one. Then export and download each file, or all of them as a ZIP.

No. The whole thing runs inside your browser, including the encoding, so your video never leaves your computer. There is no upload wait, nothing sitting on a server, no queue behind other people, and nothing for us to delete afterwards. It also means the tool keeps working if your connection drops halfway through.

Longer than a tool that encodes on a server, and that is the honest trade for nothing being uploaded. On a typical laptop, expect roughly four times the length of the clip at 1080p, about twice at 720p, and close to real time at 480p. A blurred background is the slowest of the four modes, about 1.7 times the others. So a one-minute clip to 1080 by 1920 takes around four minutes, and the tool shows you that estimate before you start. Dropping to 720p roughly halves it and almost nobody will see the difference on a phone.

They are all in the list, so you do not have to look them up. Instagram Reels and Stories, TikTok, YouTube Shorts, Facebook Reels and WhatsApp Status all use 1080 by 1920. Instagram portrait feed posts and Facebook feed video use 1080 by 1350, and square posts 1080 by 1080. YouTube and LinkedIn landscape use 1920 by 1080. If you tick several of the vertical ones, the tool makes one file and tells you it is doing so rather than encoding the same video five times over.

You have three sensible options and the tool does all of them. Crop to fill zooms in until the frame is covered and cuts the sides away - drag the picture to choose which part survives, which matters when your subject is off-centre. Blurred background keeps the whole frame in the middle and fills above and below with an enlarged blurred copy of the video, which is what most professionally made vertical posts do and is usually the best-looking answer. Fit does the same but with a flat colour instead of the blur. Stretch is there for completeness but distorts faces, and the tool tells you by how much.

On a vertical video, the platform puts its own interface on top of your footage - the caption, the username, the like and share buttons, and on some apps a progress bar. Anything you place in those regions can be covered. Switching the guides on dims the areas that are commonly obscured so you can keep titles and faces inside the clear middle. The guides are drawn on the preview only and are never burned into the exported file.

Yes. Switch File size to Target size and enter a figure in megabytes. The tool works out the bitrate that needs, shows it, and warns you when the target is so small the video would look blocky at the resolution you picked - it also tells you the smallest sensible target instead of just failing. It is a single-pass encode, so the result usually lands within about ten per cent of what you asked for rather than exactly on it.

MP4, MOV, WebM and MKV, as long as your browser can read the video. MP4 with H.264 is the safest and works everywhere. Some MOV and MKV files use codecs a browser cannot open, and those will be refused with a message rather than failing silently - re-save as MP4 and it will work. Exports are always MP4 with H.264 video and AAC audio, which every platform accepts.

Neither. There is no sign-up, no email, no watermark and no limit on how many videos you resize. The tool is free because it costs us nothing to run - your own device does the work.