Webtoon Size Guide (2026): Canvas Dimensions, Panel Width and Export Settings

These are WEBTOON CANVAS's published limits as of November 2026. Platforms change their upload rules from time to time, so check the WEBTOON CANVAS help centre before a big launch.

Draw at 1,600 px wide, twice the published width. Line art drawn at double size and scaled down looks cleaner than line art drawn at 800 px, and you keep a high-resolution master for print or a later re-release. Some artists go to 2,400 px (triple), but files get heavy fast.

For height, don't think in pages. A webtoon episode is one long strip, often 15,000 to 25,000 px tall at 800 px wide (so 30,000 to 50,000 px on a 1,600 px canvas). Most drawing apps struggle with a single canvas that tall, so artists work in sections of about 8,000 to 10,000 px and join them on export.

Resolution (DPI) doesn't matter on screen

Screens only care about pixels. 72 DPI and 300 DPI files of the same pixel size look identical in a webtoon reader. Set 300 DPI only if you plan to print, and then also work at a larger pixel size.

Panels don't have to fill the width. A common rhythm is full-width panels for establishing shots and action, and narrower panels (about 60 to 80% of the width) for dialogue. Leave 40 to 80 px of side margin (at 800 px) on narrow panels so the eye has somewhere to rest.

• Gutters between panels: the space between panels sets the pace. 100 to 200 px is a normal beat, 400 px or more is a long pause or a scene change.
• Speech bubbles: keep lettering at least 22 to 26 px tall at 800 px wide, or it becomes hard to read on a phone.
• Tall panels: one panel can be taller than the screen. Use it for falls, reveals and anything that should feel big as you scroll.

WEBTOON CANVAS will slice tall images for you, but cutting them yourself gives you control: you can make sure a cut never lands in the middle of a face or a speech bubble, and keep each file under 2 MB.

1. Export the whole episode as one image at 800 px wide.
2. Cut it into pieces no taller than 1,280 px, ideally in the white or black space between panels.
3. Save as JPG at about 85 to 90% quality (or PNG for flat-colour art), checking that each file is under 2 MB.
4. Name them in order (01.jpg, 02.jpg…) so they upload in the right sequence.

Our free webtoon slicer does all four steps in your browser: it scales to 800 px, finds the gutters, keeps each slice under the limit and downloads them as a numbered ZIP. Nothing is uploaded.

Most vertical comic platforms follow the same 800 px convention, but limits differ. As a rule of thumb, a strip exported at 800 px wide in 1,280 px slices works almost everywhere. For Instagram, convert the episode into 4:5 slides (1,080 × 1,350 px) and post it as a carousel. For your own website, serve the full-width strip as one long image or as slices that load as the reader scrolls.

• Drawing at 800 px: no room to fix details, and the art looks soft. Draw bigger and scale down.
• Text too small: lettering that looks fine on a desktop monitor is unreadable on a phone. Test on a phone before you publish.
• Cuts through bubbles: an automatic slice can split a speech bubble across two images, which can show a thin line between them.
• CMYK files: always export RGB. CMYK images can look dull or shift colour in browsers.