TikTok has surpassed one billion monthly active users and has fundamentally changed how short-form video content is created and consumed globally. Its recommendation algorithm is uniquely powerful — a brand-new account with zero followers can reach millions of viewers on the very first post. However, the technical quality of your upload directly affects how much detail survives the platform’s mandatory recompression. This guide covers all the essential TikTok video specifications: the standard dimensions, landscape video support, the iOS vs Android file size disparity, duration limits, thumbnail sizing, and the subtitle safe zone.
TikTok Video Official Technical Specifications
| Specification |
Value |
| Recommended resolution |
1080 × 1920 pixels (9:16) |
| Supported aspect ratios |
9:16 (vertical), 16:9 (horizontal), 1:1 (square) |
| Minimum resolution |
540 × 960 pixels |
| Maximum file size (iOS) |
287 MB |
| Maximum file size (Android) |
72 MB |
| Supported video formats |
MP4, MOV (recommended); AVI, MPEG, 3GP, TS also supported |
| Video codec |
H.264 (recommended), H.265 |
| Audio codec |
AAC, 44.1 kHz, stereo recommended |
| Frame rate |
30 fps recommended; up to 60 fps supported |
| Minimum duration |
1 second |
| Maximum duration (in-app recording) |
10 minutes |
| Maximum duration (upload) |
60 minutes |
| Thumbnail (cover) size |
1080 × 1920 pixels |
The Standard: 1080×1920px (9:16) Explained
The 9:16 vertical full-screen format is TikTok’s native and dominant video ratio. Filming and uploading at 1080×1920 pixels delivers the optimal experience for the following reasons:
- Native resolution match: Aligns with the screen resolution of most current iPhone and Android flagship devices, delivering playback without upscaling or quality loss.
- Minimizes platform recompression loss: TikTok recompresses every uploaded video before serving it to viewers. A higher-resolution source file retains more detail after this mandatory second compression pass.
- True full-screen display: No black bars, no padding — the video fills the entire screen for an immersive experience.
- Algorithmic alignment: TikTok’s algorithm gives a subtle preference to videos that match the platform’s standard vertical format, as they provide the best user experience within the app’s interface design.
Landscape Video (16:9) Support on TikTok
TikTok introduced official support for horizontal landscape videos (16:9, such as 1920×1080 pixels) beginning in 2022. This expanded support serves gaming clip creators, movie commentary channels, documentary-style content, and screen-recording tutorials where a horizontal format makes more sense than vertical.
How landscape videos display on TikTok:
- On the mobile app, landscape videos play in letterbox format — the video occupies the center of the screen with black bars above and below.
- On TikTok’s desktop web interface (tiktok.com), landscape videos display more naturally since desktop monitors use a similar 16:9 aspect ratio.
- Data consistently shows lower completion rates and engagement for landscape videos versus vertical on mobile, where the majority of TikTok consumption occurs. Use landscape format only when the content genuinely requires it; default to 9:16 otherwise.
iOS vs Android File Size Limits: A Critical Difference
TikTok enforces different maximum file sizes depending on the operating system used for upload. This is one of the most frequently overlooked specifications and can cause frustrating upload failures.
| Platform |
Maximum File Size |
Practical Target |
| iOS (iPhone) |
287 MB |
Under 200 MB |
| Android |
72 MB |
Under 50 MB |
| TikTok desktop web upload |
Up to 4 GB supported |
Under 500 MB |
Practical Tips for Managing File Size
- Use H.264 encoding rather than H.265. Although H.265 achieves better compression ratios, some Android devices have weaker H.265 hardware decoding support, which can cause upload errors or playback issues.
- For a one-minute, 1080p video encoded in H.264 at 8 Mbps, expect a file size of approximately 60 MB — comfortably within the Android limit while maintaining strong visual quality.
- Use HandBrake (free, cross-platform) or Adobe Media Encoder for precise bitrate control during export. These tools offer more granular compression settings than most consumer editing apps.
- If your video exceeds 72 MB and you are on Android, try uploading via the TikTok desktop web interface, which accepts files up to 4 GB.
TikTok Video Duration Guide
In-App Recording: Up to 10 Minutes
Videos recorded directly within the TikTok camera can now run up to 10 minutes, extended from the previous 3-minute cap in 2022. This duration accommodates tutorials, day-in-the-life vlogs, and episodic content that needs more breathing room than the classic short-form format allows.
Uploaded Videos: Up to 60 Minutes
Uploading a pre-edited video (from your camera roll or computer) supports durations of up to 60 minutes. This supports long-form tutorials, complete documentary films, and repurposed live stream recordings.
Duration Strategy by Content Type
- 7–15 seconds: The viral sweet spot. The highest completion rates and most share-friendly format for humor, satisfying visuals, and rapid-fire tips.
- 15–60 seconds: The mainstream creative range for TikTok. Covers tutorials, trending challenges, storytelling snippets, and product demonstrations.
- 1–3 minutes: Effective for detailed how-to content, recipes, travel highlights, and narrative storytelling. Requires a strong hook in the first 3 seconds to maintain viewer attention past the 15-second mark.
- 3–10 minutes: Suited for deep-dive educational content, news analysis, and series content. Best performed by established creators with an engaged existing audience base.
Thumbnail (Cover Image) Sizing and Setup
The TikTok cover image — displayed in your profile grid and search results — uses the same 1080×1920 pixel (9:16) dimensions as the video itself.
How to Set Your Cover
- Select a video frame: During the pre-publish editing screen, tap the “Cover” option and drag the slider to select the most visually compelling frame from your video.
- Upload a custom image: You may upload a separately designed JPG or PNG (1080×1920 pixels) as the cover. Custom covers allow for more intentional design, including consistent text overlays and branded styling.
Cover Design Best Practices
- Add a 3–5 word title overlay to your cover image so profile visitors can immediately understand what the video covers without playing it.
- Avoid overtly clickbait thumbnails. TikTok’s community culture values authenticity more than most platforms, and misleading covers can generate negative comments that hurt engagement metrics.
- Maintain a consistent visual style across your profile’s cover images — similar color treatment, font choice, or compositional structure — to create a polished, cohesive profile grid.
Subtitle Safe Zone Guidelines
Adding captions to TikTok videos meaningfully increases watch time because a large proportion of users scroll through TikTok with the audio muted. However, subtitles placed in the wrong region of the frame will be obscured by TikTok’s UI overlays.
TikTok UI Overlay Zones
- Right side (~81–100% of width, ~918–1080 pixels): Vertical column of interaction icons — follow, like, comment, favorite, share — and the creator’s profile photo thumbnail.
- Bottom (~80–100% of height, ~1536–1920 pixels): TikTok navigation bar, creator username link, video caption text, and scrolling audio attribution.
- Top (~0–8% of height, ~0–154 pixels): Search icon and notification bell (varies by device and app version).
Recommended Subtitle Placement
- Horizontal position: Start subtitle text no closer than 54 pixels from the left edge and keep it at least 180 pixels from the right edge to avoid overlapping the interaction button column.
- Vertical position: Place subtitles in the range of 55–75% of the frame height (approximately 1,056–1,440 pixels from the top). This zone sits above the bottom UI overlay and below the top navigation elements on most devices.
- If you use TikTok’s built-in Auto Captions feature, the system automatically positions them within the safe zone. Always preview the result before publishing to confirm the placement looks correct on your specific device.
TikTok Video Publishing Best Practices
- Film in vertical 9:16 from the moment you press record. Reframing horizontal footage into vertical during post-production introduces quality loss and often results in awkward compositions that betray their horizontal origins.
- Use trending sounds from TikTok’s audio library. The algorithm actively promotes videos that use sounds currently gaining traction on the platform — this is one of the most reliable organic reach multipliers available to creators.
- Include 3–5 relevant hashtags in your caption: a mix of high-volume broad tags and smaller niche tags specific to your content topic.
- The first 3 seconds are non-negotiable. Open with motion, a direct question, a surprising visual, or an explicit promise of what the viewer will learn — anything that gives them a reason not to scroll away immediately.
- Engage with comments in the first hour after publishing. Early engagement volume signals genuine audience interest to the algorithm and can significantly expand initial distribution.
Doing it without uploading the file
If the file is confidential, the safest route is the one where it never leaves your computer. Video Compress runs entirely in the browser: the file is read from your disk, processed in memory, and written back — nothing is sent to a server.
- Open Video Compress.
- Choose the file from your computer. It is read locally, not uploaded.
- Choose the target size or quality.
- Download the result. The original stays where it was.
Do it in your browser — the file never leaves your device: Video Compress
