Live arithmetic
Turn master pixels into target width, scaled height, and deterministic slice counts.
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.
Use the free toolNo 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.
Connected creator workflow
Move to the next production step
Cluster hub
Continue in LlamaGenCreate the complete episode in Manga MakerTurn publishing constraints into a reusable vertical-comic project with consistent characters and scenes.Open workflow 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 toolWebcomic 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 guidePublish 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 toolWebtoon 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 toolWebtoon 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 toolSmart 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 CutterContinue 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.
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.