Versioned snapshot
See profile 2026-08-31 and the date each official source was checked.
Versioned webcomic publishing profile
WEBTOON CANVAS episode and thumbnail specifications
Review a versioned WEBTOON CANVAS profile with official sources, exact documented values, a live file assessment, and explicit flags for requirements not published publicly.
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Versioned publishing profile
WEBTOON CANVAS
Documented assets and serving behavior
| Asset | Dimensions | Bytes | Formats | Status |
|---|---|---|---|---|
| Episode image | ≤ 800 × 1,280 px preparation target | < 2 MB each; ≤ 20 MB episode | JPG, JPEG, PNG | documented |
| Square series thumbnail | 1,080 × 1,080 px | < 500 KB | JPG, JPEG, PNG | documented |
| Vertical series thumbnail | 1,080 × 1,920 px | < 700 KB | JPG, JPEG, PNG | documented |
| Episode thumbnail | 202 × 142 px | < 500 KB | JPG, JPEG, PNG | recommended |
Limits this tool does not hide
- The linked 800 × 1280, 2 MB, 20 MB, and 100-image values come from WEBTOON Academy's official linked Creator Resource Handbook; confirm the live CANVAS dashboard before release.
- WEBTOON may optimize files that exceed its stated preparation dimensions, so this profile aims to avoid automatic transformation rather than predict acceptance.
- The tool checks file mechanics only; rights, content rating, community policy, and monetization eligibility remain creator responsibilities.
Official sources
- Official Creator Resource Handbook — episode body limits
WEBTOON · checked 2026-08-31 · source updated 2024-01-15
- Official WEBTOON Academy handbook entry
WEBTOON · checked 2026-08-31
- Official CANVAS thumbnail sizes and limits
WEBTOON CANVAS · checked 2026-08-31 · source updated 2026-07-22
- Official CANVAS preview checklist
WEBTOON CANVAS · checked 2026-08-31 · source updated 2025-10-31
The full profile, live assessment, source links, and downloadable report are free without signup. Confirm final production rules with your printer or publishing platform.
Connected creator workflow
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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 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 Versioned specsTapas Comic Publish Specs
Review a versioned Tapas Comics profile with official sources, exact documented values, a live file assessment, and explicit flags for requirements not published publicly.
Open Tapas Comic Publish Specs 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 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 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 comic before publishing to WEBTOON CANVAS
Use LlamaGen to build consistent characters, editable scenes, and complete vertical-comic episodes in one reusable story workspace.
No false certainty
Each measured value shows the observed and documented requirement.
Actionable report
Enter file facts and download a source-linked production assessment.
WEBTOON CANVAS Publish Specs FAQ
Production answers without the guesswork
Are these WEBTOON CANVAS specifications official?+
The displayed fixed values are transcribed from the linked official sources, with the check date shown beside each link.
Does a passing result guarantee upload acceptance?+
No. It checks documented file mechanics only and cannot predict live validation, content policy, rights, or account eligibility.
What if a requirement is not publicly documented?+
The profile labels it as unknown and tells you to verify the current creator dashboard instead of guessing.