Video size checker for TikTok, Reels and Shorts
Check a video against what TikTok, Instagram Reels and YouTube Shorts take: its shape, size, length, frame rate and file. See what's fine, what's worth fixing and how, before you post. Free, and nothing is uploaded.
An example: a podcast video
Or drop it on the phone. Only its details are read, on your device: nothing is uploaded.
Sizes and limits on each app
All three apps fill a phone's screen with a vertical 9:16 video, and 1080 × 1920 is that shape in full HD: the size to export for all of them. Beyond that, each has its own limits.
| TikTok | Instagram Reels | YouTube Shorts | |
|---|---|---|---|
| Shape | Any; other shapes are shown smaller | 1.91:1 to 9:16 | Square or vertical |
| Longest | 60 minutes uploaded in the app, 30 on the web | 20 minutes; over 3 isn't recommended to new viewers | 3 minutes |
| Smallest | 720 × 1280, on the web | 720 pixels | None stated |
| Frame rate | None stated | At least 30 fps | The one it was recorded at |
| Files | MP4 or WebM, under 10 GB, on the web | H.264 video, in Instagram's specs | MP4 with H.264 recommended; MOV, WebM and more work |
The specs are from each app's help pages, read on October 11, 2026: they're listed under the questions below. Where an app gives two numbers, as TikTok does for the app and the web, the checker tells you both.
What matters most
The shape. A horizontal video on a vertical screen is a strip across the middle: a 16:9 video fills about 32% of it. Crop it to 9:16 with the vertical video converter, and keep what matters clear of the apps' buttons with the safe zone checker.
The length. Over 3 minutes, a video can't be a Short and won't be recommended on Reels. Most clips that work run 20 to 60 seconds anyway: one moment, from its hook to its payoff. More in how long a clip should be.
Sharpness. Instagram shows blurry and low-resolution reels less often. Export at 1080 × 1920 from the best copy you have: enlarging a small video doesn't add detail.
When the video is too long
A podcast episode, a stream or an interview won't fit any of the three as it is, and it shouldn't: on a feed, people watch moments, not episodes. The way to post it is as clips of its best moments, each vertical and captioned.
That's what Clyper does with a YouTube link or an upload: it finds the moments worth posting, cuts each to whole sentences, frames it on whoever's talking and captions every word, for up to 30 clips per video. Each comes out at 1080 × 1920, ready for all three apps.
Questions
What size is a TikTok video?
TikTok fills the screen with a vertical 9:16 video, and 1080 × 1920 is that shape in full HD. It takes other shapes too, shown smaller. On the web, it takes MP4 or WebM files of 720 × 1280 or more, under 10 GB.
What size is an Instagram Reel?
Reels fill the screen at 9:16, so export them at 1080 × 1920. Instagram takes reels from 1.91:1 to 9:16, at least 720 pixels and 30 frames a second.
What size is a YouTube Short?
A Short is a square or vertical video up to 3 minutes long, and 9:16 at 1080 × 1920 fills the screen. YouTube posts a horizontal video, or one over 3 minutes, as a regular video instead.
How long can a TikTok, Reel or Short be?
TikTok takes uploads of up to 60 minutes in the app (30 on the web) and records up to 10. Reels can be up to 20 minutes, but Instagram doesn't recommend reels over 3 minutes to people who don't follow you. Shorts are up to 3 minutes.
Can I post a horizontal video on TikTok or Reels?
Yes, but a 16:9 video fills only about 32% of a phone's screen, and a horizontal video can't be a Short. Crop it to 9:16 with the vertical video converter, or, if it's a long video, turn its best moments into vertical clips.
Is my video uploaded anywhere?
No. The checker reads the file's details (its size, length, frame rate and format) in your browser. The video never leaves your device.
Sources
From the apps' own help pages, read on October 11, 2026. The apps change their limits from time to time, and some differ by account and country.
- YouTube Help: three-minute YouTube Shorts
- YouTube Help: upload YouTube Shorts
- YouTube Help: recommended upload encoding settings
- Instagram Help: record a reel
- Instagram Help: reel size and aspect ratios
- Instagram Help: what kind of reels you may see
- TikTok Support: camera tools
- TikTok Support: tools for creators (uploading on the web)
- TikTok Support: Creator Rewards Program
- TikTok Support: how Creator Rewards work
Long video? Post its best moments
Paste a YouTube link and Clyper finds the best moments, frames each one at 1080 × 1920 on whoever's talking and captions every word: up to 30 clips, ready for TikTok, Reels and Shorts.
Guides
- Making clipsVideo sizes for TikTok, Reels and Shorts in 2026The sizes, shapes and limits for each app, where captions are safe, and how to make a 16:9 video vertical.7 min read
- Making clipsHow to make Instagram Reels, step by stepRecording or uploading a reel, the editing tools, Edits, the length and size rules, and turning a long video into reels.11 min read
- Making clipsHow to compress a video without losing qualityHow file size works, how much video fits in Discord's and Gmail's limits, and the settings that keep it looking good.5 min read
More free tools
- Vertical video converterTurn a horizontal video into a 1080 × 1920 one for TikTok, Reels and Shorts, cropped or fitted, without uploading it.
- Split screen video makerStack a streamer's webcam over the game, two people talking, or a clip over gameplay, in one 1080 × 1920 video.
- Crop videoCrop a video to any shape, 9:16, 1:1, 4:5 or your own, by dragging a box over it, without uploading it.
- Add text to videoPut a title, a hook or a label on a video, styled the way clips are and placed clear of the apps' buttons, as an MP4 with no watermark.
- Add watermark to videoPut your @handle or logo on a video, see-through, in any corner or moving between them, clear of the apps' buttons.
- Rotate videoTurn a sideways or upside-down video the right way up, or flip it, in seconds and without uploading it.
- Add captions to videoBurn captions into a vertical video, word by word in the styles clips use: transcribed from its speech, or from an SRT or VTT file.
- Auto caption generatorTurn a video's speech into timed captions in your browser: edit them, download SRT or VTT, or burn them into a vertical video.
- SRT to VTT converterConvert subtitles between SRT and VTT, shift their timing, or turn them into plain text, in your browser.
- Video to text converterTranscribe a video or audio file into text with timestamps, in your browser, and copy or download it.
- Video compressorMake a video smaller to fit Discord, an email or any size you pick, as an MP4, without uploading it.
- MP4 converterTurn MOV, MKV, WebM and other videos into MP4, several at once, without losing quality when the formats allow, and without uploading them.
- Video trimmerCut a video down to the part you want, at the same size and quality, in your browser and without uploading it.
- Video splitterSplit a video into parts: every 30 or 60 seconds, into equal parts, or where you mark it, kept as it is or 9:16 and numbered.
- Merge videosJoin clips into one video, in the order you choose, fitting clips of other shapes on a blurred background, black bars or a crop.
- TeleprompterRead your script on camera: it scrolls at your speaking pace, pauses when you do, and can record you with your camera.
- Speed up videoSpeed a video up or slow it down, from 0.25× to 4×, keeping the voice's pitch, and download the MP4. Works on audio too.
- Video to GIF converterTurn a few seconds of a video into a GIF, at the size and smoothness you pick, in your browser.
- Remove background noise from videoTake fans, hum, traffic and room noise out of a video's sound (or a sound file's) and keep the voice, on your device.
- Increase video volumeMake a quiet video louder: it's measured in LUFS and brought up to -14 LUFS, a common level for social video, without distorting.
- Bleep censorBleep the swearing out of a video or podcast: it's transcribed on your device, the swear words found, and each one bleeped.
- Add music to videoPut a song under a video's sound: set the volumes, fade it, loop it, and let it dip when someone talks. Download the MP4.
- Video to MP3 converterSave a video's sound as an MP3, M4A or WAV, all of it or just a part, in your browser and without uploading it.
- Audiogram makerTurn a podcast's audio into a video: its cover, a waveform that moves with the sound and captions from the speech, as a 9:16, square or 16:9 MP4.
- Remove audio from videoTake the sound out of a video, keeping the picture exactly as it is, in seconds and without uploading it.
- Remove silence from videoCut the pauses out of a talking video or podcast automatically: hear it without them first, then download a tighter MP4.
- Safe zone checkerCheck your clip against TikTok, Reels and Shorts' buttons and captions before you post.
- YouTube thumbnail makerMake a 16:9 thumbnail from a frame of your video: a bold title, your face on top, and a preview the way YouTube shows it.
- Shorts thumbnail makerMake a 9:16 cover for a Short, a TikTok or a reel: a frame of your video with a bold title, at the sizes the apps suggest.
- YouTube clip makerClip any moment of a YouTube video by its start and end, and share it as a link, an embed or its timestamps.
- YouTube timestamp generatorMake chapters for a YouTube description: mark them as the video plays or from its transcript, checked against YouTube's rules.
- YouTube thumbnail downloaderGet any YouTube video's thumbnail in every size YouTube keeps, up to 1280 × 720, from its link.
- Aspect ratio calculatorFind any size's aspect ratio, a new width or height at the same ratio, and the crop for 9:16, 1:1 or 4:5.
- Clipping earnings calculatorSee what your clips could earn on campaigns that pay per 1,000 views, by the day, month and year.
- YouTube Shorts money calculatorSee what YouTube Shorts pay for your views, from the ad revenue Shorts share with creators in the Partner Program.
- TikTok money calculatorSee what TikTok's Creator Rewards Program could pay for your views, per 1,000 qualified views.
- YouTube money calculatorSee what your YouTube videos could earn from ads, per 1,000 views, by the month and the year.
- YouTube watch hours calculatorSee how many watch hours your views make and how long until you reach YouTube's 4,000 for monetization.
- Engagement rate calculatorWork out a post's engagement rate on TikTok, Instagram or YouTube, by views and by followers, against typical rates.
- Hook generatorGet opening lines for your clips from formulas that keep people watching past the first second.