Manga & Webtoon Localization

From source page to localized chapter.

Sigyl extracts dialogue, translates with character context, and reletters every panel. Your team reviews each step before the chapter is published.

Get a demo
⚡ 18x fasterToonsutra: 6 hrs → 20 min / episode
Sigyl detecting a speech bubble on a comic panel
Product

All-in-one manga and webtoon localization.

Sigyl AI handles extraction, translation, and relettering — native to both page manga and vertical-scroll webtoon. Move a chapter from source language to publish-ready without splitting the work across five different vendors.

  • Translate at volumeWithout adding vendors to your pipeline.
  • Edit design assets directlyManage assets in-line, without a separate design pass.
  • Scale without headcountScale localization output without scaling your team.
Your catalog and your translations stay yours. Sigyl AI doesn't claim rights to your content, and nothing you upload is used to train models for other customers.

Want an animated, voiced version too? See Cinematic Mode →

Sigyl series dashboard: upload a chapter and move it through split, detect, translate, and publishSigyl editor: the rendered translation with per-region review
How it works

Four steps. Fully automatic, or fully yours.

Run the full localization process automatically, or pause at any step to review and adjust the work before it moves forward.

1

Extraction

Extraction — Sigyl interface

Speech, SFX, and narration are detected per page and classified by region. Editors correct any misdetection before anything moves on.

Smart object detection
Speech bubbles, SFX, and text boxes are detected and classified by type, so nothing is missed or mistranslated out of context.
2

Translation

Translation — Sigyl interface

Each language is routed to whichever model handles it best, and every line can be edited directly against the page.

Character-aware translation
Formality and speech style are tracked per character, with configurable cultural adaptation rules for each target language.
3

Relettering

Relettering — Sigyl interface

Text is typeset back onto the art, preserving the original font, spacing, and bubble geometry, for both page manga and vertical-scroll webtoon.

Automatic patch generation
When translated text leaves gaps or needs layout shifts, patches are generated automatically to blend with the surrounding art, no manual cleanup pass.
4

Publish

Publish — Sigyl interface

Finished chapters go out through your existing publishing workflow, with per-title style rules per language.

Native to manga and webtoon
Relettering preserves the original font, spacing, and bubble geometry, with no manual adaptation between page and vertical-scroll formats.
Language coverage

Deep South Asian and Latin American coverage, and growing.

Built for markets other localization tools skip. Translate from English, Japanese, or Korean, for both manga and webtoon, and publish across South Asia and beyond. Don't see a language you need? Contact us.

Cinematic Mode

Turn a finished chapter into a watchable experience.

Once a chapter is finished, Sigyl can create a watchable version using the same artwork and script. Add motion to selected panels, voice each line in the chosen language, and mix music underneath. Your team can review and adjust every scene before publishing.

Motion where it adds value
Add pans, zooms, and transitions to selected panels. Editors can adjust or remove any movement.
Voices in every target language
Generate voice-over line by line, with timing matched to each panel and scene.
Music balanced with dialogue
Add a chapter-wide score and control how it sits beneath narration and character voices.
Get started

See it running on a real chapter.

Book a demo and we'll walk through the pipeline against a chapter from your own catalog.