TikTok, Reels, and YouTube Shorts Video Export Settings: Resolution, Frame Rate, and File Size Guide

Overview

Short-form video platforms generally work best with a vertical 9:16 composition. A reliable master export is usually 1080 × 1920 pixels, encoded as an MP4 with H.264 video and AAC audio. This size is detailed enough for mobile viewing while remaining practical for editing, transferring, and uploading.

Resolution is only one part of video quality. A correctly sized file can still look soft if the original footage is low resolution, the bitrate is too low, or the video has been compressed several times. Repeatedly downloading and re-uploading a video from one platform to another can also introduce visible artifacts and may carry platform-specific overlays into the next upload. Keep a clean master file and create separate exports from that master whenever possible.

The table below is a starting point for a cross-platform workflow. It describes production recommendations rather than permanent platform rules. Upload size, duration, codec support, and publishing options can vary by account, device, region, app version, or feature rollout.

For the best frame rate for short videos, preserve the frame rate used during recording and editing unless you have a specific reason to change it. Converting a 24 or 30 frames-per-second source to a higher frame rate does not create additional motion detail. Likewise, forcing a higher frame rate onto a source that was recorded at a lower rate can make motion look unnatural. Use a consistent timeline and avoid unnecessary frame-rate conversions.

Step-by-step workflow

1. Choose the destination before editing. Start with a vertical 9:16 sequence if the video is intended primarily for TikTok, Reels, or Shorts. If you are repurposing a landscape recording, decide whether to crop, reframe, or place it inside a designed vertical layout. Check faces, products, and on-screen text after the crop rather than assuming the automatic framing is correct.
2. Build a clean master. Edit from the highest-quality original footage available. Keep the master free of platform logos, app interface elements, and captions that may need to change by destination. Save the project file and a clean export separately so you can correct a caption or create a new version later.
3. Protect the safe area. Place important text, subtitles, prices, logos, and calls to action away from the top, bottom, and side edges. Each app places interface controls over the video, and those controls can obscure content. Preview the composition on a phone before exporting a large batch.
4. Set the sequence and export values. Use 1080 × 1920 as the practical baseline, match the source frame rate, and choose MP4/H.264 with AAC audio unless your editing tool or destination requires another supported option. Select variable bitrate when available and use a quality setting that preserves fine detail without creating an unnecessarily large file.
5. Export once from the master. Do not use a downloaded TikTok, Reel, or Short as the source for another platform. Instead, export a clean version and create platform-specific variants for captions, cover frames, or edits. Use clear filenames such as topic_1080x1920_30fps_clean.mp4.
6. Test a short sample. Before exporting a full content batch, upload one representative file privately or as a draft where the platform supports that workflow. Inspect text, color, audio sync, crop, captions, and playback quality on a mobile device.
7. Confirm current upload requirements. Duration limits, maximum file sizes, accepted formats, and editing options can change. Check the current upload screen or the platform's own help documentation at the point of publishing instead of relying on an old checklist.

Tools and handoffs

Most desktop and mobile editors can handle this workflow if they provide control over canvas size, frame rate, codec, bitrate, and audio. For a comparison of editing options, see Best Video Editing Apps for Creators and Best Video Editing Tools for Creators.

A simple handoff system prevents avoidable compression. Store original footage, the editable project, the clean master, captioned variants, thumbnails or cover frames, and published links in clearly named folders. If several people handle the process, pass along the intended platform, target dimensions, frame rate, caption version, audio source, and approval status with each file.

For repurposing, begin with one clean vertical master and adapt the opening seconds, captions, cover, description, and call to action for each destination. A video can retain the same core idea while receiving platform-specific packaging. The Short-Form Video Repurposing Workflow provides a broader process for turning one idea into multiple platform versions.

Quality checks

• Dimensions: Confirm the file is vertical and displays at 1080 × 1920 when that is your chosen baseline. Watch for accidental horizontal exports or black bars.
• Crop: Check faces, hands, products, subtitles, and logos at the beginning, middle, and end of the video.
• Text: Read every caption on a phone. Keep text large enough for mobile viewing and away from areas likely to be covered by interface controls.
• Motion: Look for stutter caused by an incorrect frame-rate conversion, especially in pans, screen recordings, and fast movement.
• Audio: Confirm that dialogue is understandable, music is not overpowering, and audio remains synchronized after export.
• Compression: Inspect fine textures, hair, foliage, gradients, and fast movement for blockiness or banding. If the file looks soft, return to the clean master rather than exporting the compressed file again.
• File size: If an upload fails, confirm the current platform limit first. Then reduce bitrate or simplify the export only as much as necessary; lowering resolution should not be the first response when a 1080 × 1920 export is otherwise appropriate.
• Captions and audio rights: Verify that captions match the spoken content and that the audio choice is appropriate for the destination and intended use.

After publishing, compare the live result with the local export. If the platform processing makes the video look different, document the export settings and test one controlled change at a time. For performance-related diagnosis, use the Short-Form Video Analytics Audit Checklist rather than changing export settings without evidence.

When to revisit

Revisit this guide before a new batch whenever TikTok, Instagram, or YouTube changes its upload screen, supported formats, duration options, processing behavior, or file-size rules. A quarterly review is a sensible internal habit, but a platform announcement or unexpected upload error is a reason to check sooner.

Keep a dated version of your export preset and record the platform, app version, device, resolution, frame rate, codec, bitrate, file size, and result. If a file uploads successfully but looks poor, compare it with a fresh test export from the clean master. Change one variable at a time so you know whether the cause was bitrate, frame rate, cropping, color conversion, audio processing, or platform compression.

Before your next publishing session, use this short action list:

1. Confirm the current destination limits.
2. Open the clean 9:16 master.
3. Check captions and safe areas on a phone.
4. Export with matched frame rate, MP4/H.264 video, and AAC audio.
5. Review the file size and playback before uploading.
6. Keep a platform-specific version and note any processing issue for the next update.

That routine turns TikTok video export settings, Instagram Reels dimensions, and YouTube Shorts resolution from a one-time technical question into a maintainable publishing system.