TikTok Safe Zone: What TikTok Publishes and Where Subtitles Go

What TikTok actually publishes about the safe zone

The official word on the TikTok safe zone sits in TikTok's Ads Manager help, on the specification pages for in-feed ads and for interactive add-ons such as the Download Card. Those pages say that key elements like text and logos should stay inside the safe zone, because anything outside it may be covered or cropped. They don't give margins in pixels. Instead, they attach ZIP files of overlay images, with the safe area marked in green, and ask you to pick the file that matches your video.

Where the guidance lives

TikTok Ads Manager help: the auction and reservation in-feed ad specifications, plus pages for add-ons such as the Download Card

What changes the size

The video's shape (vertical, horizontal or square), the length of the ad caption, and any interactive add-on or anchor. TikTok says the longer the caption, the smaller the safe zone

Form of the guidance

Overlay files in ZIP archives, not a list of pixel values

Regions

A standard left-to-right version for every region except the Arabic region, which has its own right-to-left version

Caption text

Ad captions appear in white in a fixed font that can't be customised; for Spark Ads, TikTok says up to four caption lines can be displayed, emojis included

Background warning

TikTok advises against white or transparent backgrounds, because the nickname, ad caption, music caption and app icons are white and may not be visible

Preview caveat

The auction in-feed page notes that the ad preview isn't specific to a device, so the live version can differ slightly

All of that is written for ads. For ordinary posts, TikTok publishes no safe zone of its own, which is why creators borrow the ad files or measure screenshots.

Why the pixel numbers online disagree

Search for TikTok safe zone dimensions and you'll find two families of numbers for a 1080×1920 frame, both from third-party sites rather than TikTok:

• Values read from TikTok's in-feed ad overlay, quoted by several overlay-checker sites as roughly 240 px at the top, 660 px at the bottom and 120 px at each side, with a wider reserved column on the right in the lower part of the frame for the buttons.
• Values measured from organic posts, quoted as roughly 130 px at the top, 484 px at the bottom, 44 px on the left and 140 px on the right.

The gap is not a mistake on either side. The ad overlay leaves room for a call-to-action button, a sponsored label and a long caption, and it's drawn to cover the worst case. The organic measurements come from screenshots of particular posts on particular phones at a particular time, with a short description. Both are reasonable starting points, neither is an official spec, and both go out of date when TikTok redesigns its interface.

If you need a single rule, design for the stricter ad-style margins when there's any chance the video will be promoted, and treat the measured organic values as the outer limit for posts that will stay organic.

Organic posts, Spark Ads and in-feed ads

Three situations put different furniture over the same video:

• An organic post carries the right-hand rail (profile picture, likes, comments, saves, shares, sound disc) and the bottom block with your username, description and sound name. A long description takes more lines, and viewers can tap it to expand it further.
• A Spark Ad reuses an organic post. Its ad caption is taken from the post's own caption, and the reservation in-feed specification limits it to 150 characters. The ad adds its own elements on top of the organic layout.
• A non-Spark in-feed ad is uploaded as an ad creative, with its own caption in TikTok's white font and an account name limited to one line.

The practical consequence: a clip you post organically and later boost as a Spark Ad gets the ad layout without being re-edited. Text that only just cleared the organic bottom block can end up under the ad's extra elements, so leave the extra margin from the start.

Where subtitles go on a 1080×1920 frame

Every overlay, official or third-party, agrees on the shape of the problem: the bottom strip and the right edge are covered, the very top has tabs and search, and the upper middle of the frame stays clear. Subtitles need to sit above the bottom block without climbing over faces.

Some arithmetic on a 1080×1920 frame makes the choice concrete:

• With the ad-derived 660 px bottom reserve, the lowest line of a subtitle should end no lower than about 1,260 px from the top.
• With the measured organic 484 px reserve, the limit is about 1,436 px from the top.
• The free subtitle editor rests Bottom-positioned subtitles 16 per cent of the frame height above the bottom edge on 9:16 video, about 307 px. That clears the editor's own guide but sits inside the band TikTok's ad overlays reserve, so for TikTok you'll usually choose Middle or nudge the text up.

Sideways, keep lines short enough that a centred line doesn't run into the right-hand rail. The editor flags lines over 42 characters; on a vertical TikTok, staying well under that keeps the right end of the line clear of the buttons. The general margins the editor draws for each shape are explained on the subtitle safe area page, and the layout of the buttons and description bar is described in adding captions to a TikTok video.

How to subtitle a TikTok inside the safe zone

1. Start from a vertical file. If the footage is landscape, convert it with horizontal to vertical video: crop a 9:16 window, or fit the whole frame into 1080×1920 over a blurred background, which leaves a band where subtitles never cover a face. The conversion runs in your browser and the file isn't uploaded.
2. Open the clip in the subtitle editor and bring in the words: import an SRT or VTT, type them, or create them from the speech with the AI subtitle generator at 1 credit (0.1¢) per minute with a 5-credit minimum, so a 50-second clip costs 5 credits (0.5¢). For AI subtitles only the audio track is uploaded; the video stays in the browser.
3. In the Style tab, pick a preset with a background box. TikTok's interface text is white, and a box keeps your subtitles readable over bright footage too.
4. Tick "Show safe area" and check the label reads 9:16. Choose Middle, or keep Bottom and use "Nudge up / down" until the lowest line clears the bottom reserve you've chosen.
5. Pause on the longest subtitle and on any two-line cue. Shorten or split lines that reach towards the right edge.
6. Render the MP4. Rendering needs Chrome or Edge 94+, Safari 16.4+ or Firefox 130+ on a computer.
7. Upload the clip with its visibility limited to you, add a description as long as the one you plan to use, and watch it on a phone before making it public.

What the safe zone doesn't guarantee

• Phones differ. Screen proportions, rounded corners and system bars shift where the interface lands, and TikTok itself says previews aren't device-specific.
• The layout changes. TikTok redesigns its interface from time to time, and every pixel template, including the ad overlays, describes one moment.
• Expanded descriptions grow. A viewer who taps the description covers more of the frame than any template shows.
• Horizontal and square videos get their own overlay files in the ad help, and the space around a letterboxed video behaves differently from a full-screen 9:16 frame.
• Two sets of captions clash. If you burn subtitles in, leave TikTok's own auto captions off for that post, or viewers may see the same sentence twice.

The safe zone tells you where text is unlikely to be covered. It doesn't tell you whether the text is readable, so size and line length still matter; TikTok caption styles covers the look of the words.

Reusing the same clip on other apps

Reels and Shorts cover the frame differently, so a TikTok-safe position isn't automatically safe elsewhere. Keep the subtitle file and re-render per platform if the layouts conflict. The guide to YouTube Shorts subtitles covers Shorts placement, and the export settings for Instagram Reels and TikTok explain the file settings to choose once the subtitles are in place.