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Interactive WEBTOON CANVAS guide

Calculate a WEBTOON CANVAS episode before export

Enter a master-strip size to calculate scale, prepared output dimensions, slice count, estimated raw memory, and a source-linked WEBTOON CANVAS checklist.

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No signupNo watermarkRuns in your browser

The live calculator and downloadable preparation summary are free and require no artwork upload. Confirm final production rules with your printer or publishing platform.

Last verified: 2026-08-31Official Creator Resource Handbook — episode body limitsOfficial WEBTOON Academy handbook entryOfficial CANVAS thumbnail sizes and limitsOfficial CANVAS preview checklist

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Webtoon Publishing Tools

Choose a destination, test a live episode sample, and move directly into free cutting, thumbnail, conversion, and specification tools for webcomic publishing.

Open Webtoon Publishing Tools Free browser tool

Webcomic Platform Converter

Compare WEBTOON CANVAS, Tapas, and GlobalComix output plans, resize a private master without forced upscaling, and export supported local variants.

Open Webcomic Platform Converter Interactive guide

Publish a Webcomic on Multiple Platforms

Compare your master against WEBTOON CANVAS, Tapas, and GlobalComix, then download a generated matrix that separates hard requirements from manual review.

Open Publish a Webcomic on Multiple Platforms Free browser tool

Webtoon Format Checker

Check webtoon images for platform width, height, format, file-size, episode-total, and file-count rules with a private browser-based validation report.

Open Webtoon Format Checker Free browser tool

Webtoon Resizer

Resize a long webtoon strip to a target upload width, inspect the exact output dimensions and 100% preview, then export locally as JPEG, PNG, or WebP.

Open Webtoon Resizer Free browser tool

Smart Webtoon Cutter

Analyze a long comic locally, suggest low-ink cut lines near the platform boundary, override every seam manually, and export numbered publishing slices.

Open Smart Webtoon Cutter
Continue in LlamaGenCreate the complete episode in Manga MakerTurn publishing constraints into a reusable vertical-comic project with consistent characters and scenes.Open workflow

Continue in LlamaGen

Create the episode that fits this plan

Use LlamaGen to build consistent characters, editable scenes, and complete vertical-comic episodes in one reusable story workspace.

Open the LlamaGen workflow Explore LlamaGen plans

Live arithmetic

Turn master pixels into target width, scaled height, and deterministic slice counts.

Memory warning

Estimate uncompressed browser canvas memory before attempting a large local export.

Dated evidence

Separate documented requirements from workflow recommendations and link the official sources.

WEBTOON CANVAS Size Guide FAQ

Production answers without the guesswork

Is 800 × 1280 one complete WEBTOON episode?+

No. It is the cited maximum preparation dimension for each uploaded image; an episode can contain multiple images.

Will WEBTOON resize larger images?+

The linked official notice says files exceeding its maximum dimensions may be sliced, reduced, recompressed, or reformatted.

Should I preview before publishing?+

Yes. WEBTOON's official guidance recommends checking size, font legibility, panel order, gutters, ghost lines, and clarity in PC and mobile previews.