How to use the Resize Video for Instagram
- Choose your video.
- Pick the format: Reels/Story, portrait, square or landscape.
- Choose how it fits: blurred background, black bars or crop to fill.
- Click Convert, download, and upload to Instagram.
Instagram sizes
- Reels and Stories: 1080×1920 (9:16).
- Feed portrait: 1080×1350 (4:5), the size that takes up the most space in the feed.
- Feed square: 1080×1080 (1:1).
- Feed landscape: 1080×566 (1.91:1).
Blur, bars or crop?
Blurred background keeps the whole video and fills empty space with a blurred copy, the look most creators use. Black bars keeps it clean and simple. Crop to fill zooms in so there are no bars, cutting off the edges.
Good to know
Output is MP4 with H.264 video (yuv420p, the colour format every player supports), AAC stereo at 48 kHz, and the index moved to the start of the file so playback and uploads begin immediately.
Supported files
MP4, MOV, MKV, WEBM, AVI, WMV, FLV, M4V, 3GP, 3G2, MPEG, MPG, TS, MTS, M2TS, VOB, OGV, MXF, ASF, DIVX, F4V, SWF, DV, MOD, TOD, WTV, RM and RMVB video, with H.264, HEVC, VP8, VP9, MPEG-4, MPEG-2, WMV, Theora and other codecs. AV1 videos cannot be read in the browser yet. Files up to 1 GB each.
Frequently asked questions
What format does Instagram want?
MP4 with H.264 video and AAC sound, 30 fps or less. This tool outputs exactly that.
Is the video uploaded to Instagram?
No. The file is made on your device; you upload it yourself in the Instagram app.
Do I have to pay or sign up to use the Resize Video for Instagram?
No. There is no account, no payment and no watermark. The only limit is 1 GB per file, set by what browsers can handle.
Are my files safe?
Yes. Files are converted locally in your browser and are never uploaded. When you close the page, nothing is left behind.
Can I use it on my phone?
Yes. Open the page in your phone's browser and choose a file. Phones have less memory than computers, so very large files are better converted on a laptop or desktop.