Why Is My TikTok Slideshow Blurry? (And How to Fix It)
Updated
A TikTok slideshow usually looks blurry because the photos are smaller than the screen they are stretched to fill: under 1080 pixels wide, cropped out of a bigger photo, or saved copies of screenshots. Export every slide at 1080x1920 (9:16) as a high-quality JPEG and upload the original file, not a copy that went through a chat app. As of October 2026, TikTok's posting API accepts photos up to 1080p, so a bigger file adds size, not sharpness.
Blur almost always comes from the file, not from TikTok. Here are the causes in the order worth checking them, and the fix for each.
Steps
- 1Check each photo's sizeOpen the photo details on your phone or computer. Anything under 1080 pixels wide is stretched to fill the screen and looks soft.
- 2Upload the original fileUse the photo from your camera roll or the file your design tool exported, not a copy saved from a chat app, a social post or a screenshot.
- 3Export at 1080x1920Set your design tool to 1080x1920 and export a high-quality JPEG. Already have a mixed set? The free slideshow checker resizes every photo to 1080x1920 in your browser.
- 4Design text at the final sizeLay out text on the 1080x1920 canvas so it is never scaled up later. Bold, large type stays crisp; thin, small type is the first thing to blur.
- 5Crop before you uploadZooming or cropping inside TikTok's editor enlarges the photo, and its pixels with it. Crop to 9:16 first so nothing has to be blown up.
The most common cause: photos under 1080 pixels
A slide fills a vertical 9:16 screen. TikTok's developer documentation caps posted photos at 1080p (as of October 2026), so 1080x1920 is the size to aim for. A 640-pixel-wide image has to be stretched to fill the same space, and stretching is what makes edges soft.
Screenshots and saved copies
Each time a photo is screenshotted, saved from a social app or sent through a chat app, it can lose resolution or pick up compression. Go back to the original, or export the slide again from your design tool.
When only the text looks fuzzy
Text designed on a small canvas and scaled up renders soft, and thin strokes suffer most when an image is compressed. Design on 1080x1920 from the start, use a bold font, and give text a solid or dark band behind it on busy photos.
Blurry on Instagram but fine on TikTok
Instagram keeps photos between 320 and 1080 pixels wide at their resolution, sizes larger ones down to 1080, and crops anything taller than 3:4 (Instagram Help Center, October 2026). A 1080x1920 slide gets cropped there; post a 1080x1350 version instead.
FAQ
Will a bigger photo look sharper on TikTok?
Not beyond 1080 pixels wide. TikTok's posting API accepts photos up to 1080p as of October 2026, so a 4K export only makes the file bigger.
Why are only some of my slides blurry?
Those slides almost always come from a different source: a screenshot, a saved copy or a smaller photo. The slideshow checker lists the resolution of every photo in the set, so the odd ones stand out.
Should I use PNG to keep slides sharp?
A high-quality JPEG is the safer choice. TikTok's developer documentation lists JPEG and WebP for photo posts, and very large PNGs are a common reason uploads fail.
Why is the text on my slideshow blurry?
It was probably designed smaller and scaled up, or it is thin and small. Design text on a 1080x1920 canvas, use a bold weight and keep it large.
Does cropping in TikTok's editor make photos blurry?
Zooming in to fill the screen enlarges the photo, so a small photo gets softer. Crop to 9:16 at full size before uploading instead.
Sources
Platform limits checked on October 17, 2026.