Ship whole series in every language. Together.
Jokai turns a volume of raw manga into finished releases in all your target languages — imported, translated and typeset in one studio your whole team edits in real time.
- Multi-chapter imports
- Real-time collab
- PSD · CBZ export
- Public API
Volume_03.zip imported
22 chapters · 482 pages
4 languages at once
each on its own model
What only a studio gives you
Six things one-shot translators can't do.
Upload-and-download tools stop at the image. A studio runs your whole workflow — volumes, languages, team, typesetting and delivery.
Whole volumes, not single images
Drop one ZIP or CBZ and folders become chapters.
Re-sort pages across chapters in Import Studio before anything runs.
Every language at once
One chapter fans out into all your target languages simultaneously.
EN, FR, ES, DE, PT… each stream on its own model and pace.
Real-time co-editing
Your whole team types on the same canvas — nobody waits.
Live cursors per bubble and per language, pinned comments, follow mode.
A pro editor in your browser
Typeset like in Photoshop — without Photoshop.
25+ comic fonts, 17 text warps, layered strokes, vertical text.
Your own keys & storage
Plug in your AI key and your S3 bucket — costs and files stay yours.
0-credit translation · unlimited pages, never purged. AWS, R2, B2, MinIO.
Layered PSD & CBZ export
Hand off to any typesetter or reader app properly.
ZIP, CBZ, PDF, layered PSD and TXT — rendered up to 4× resolution.
Volumes & languages
Drop a volume. Ship every language.
One ZIP or CBZ becomes organized chapters — then every chapter fans out into every target language simultaneously, each stream paced by its own provider. Batches up to 700 pages.
- Ch. 36120p
- Ch. 36218p
- Ch. 36322p
- Ch. 36418p
- Ch. 36522p
- Ch. 36622p
Drag pages between chapters · natural sort applied · 482 pages · 22 chapters
Real-time collaboration
Your whole team. One canvas.
Live cursors show who is editing which bubble — and in which language. Pin a comment, @mention a teammate, follow someone's navigation, and never collide on cleanup. Every editor works on the same page, in the same instant.
- Cursors per bubble & language
- Pinned comments + @mentions
- Follow mode
- Cleanup locks
- Roles: owner · editor · viewer
- Akira
- Yuki
- Mara
Teams & workspaces
Attach a team. Run the studio.
Scanlation is a team sport that still runs on Discord threads and file dumps. Jokai gives the whole roster a shared workspace — with the pipeline on a board, not in a chat.
Attach a team in one click
Reusable team rosters land every member in a project with a role — owner, editor or viewer. Invite once, reuse for every series.
Workspaces with a Team Library
Workspaces group your projects and members. Shared glossaries, templates and style presets are reused across everything the team ships.
A real chapter pipeline
A Kanban board runs draft → translation → review → typesetting → QC → delivered, with stage assignments, due dates and overdue alerts.
Share links with client feedback
Send a review link: clients read the chapter in a clean reader and leave comments — no account, no editor access.
Translation
Review
Typesetting
QC
share.jokai/r/9f2Kclient review 2 comments The editor
A typesetting studio, in your browser.
Most tools hand you a flattened image and wish you luck. Jokai puts every bubble, font, stroke and shadow under your cursor — then keeps a QA eye on the whole chapter.
Edit · Cleanup · Preview — one canvas, three modes, live with your team.
Type like a letterer
- 25+ bundled comic fonts (AnimeAce, Wild Words, Bangers…)
- Vertical typesetting for manga, furigana-ready
- Up to 3 stroke layers, multi shadows, glow, gradient fills
- Style presets — batch-apply across pages with propagation
Shape every bubble
- 17 text-warp presets — arch, bulge, wave, twist, fisheye…
- Drag, resize and rotate blocks; polygon bubble fitting
- Auto or manual font sizing with overflow detection
- AI reformulations — alternative rewrites for any line
Clean artwork inline
- Interactive inpaint with brush tools, right on the page
- Per-block re-OCR when a detection misses
- Preserved zones shield art from every automated pass
- Full-page inpaint or rerun without losing work
Review with guardrails
- 11 automated QA checks — overflow, glossary, mismatch…
- Script panel with TM suggestions and glossary highlights
- Find & replace with regex, per language
- Version history — 20 snapshots per page, one-click restore
The consistency engine
Chapter 1 or chapter 300 — same names, same voice.
Glossaries, translation memory and genre templates work together so your two-hundredth chapter reads like your first. The studio remembers, so your team doesn't have to.
- Shared glossaries keep names and terms consistent across every chapter
- LLM auto-detection scans a chapter and suggests new terms
- Per-language glossaries for each target language — CSV import/export
Context groups
Tag pages that share a scene — they translate sequentially with a rolling story summary, so tone and references carry across spreads.
Every manual edit feeds the memory. Exact and fuzzy matches are injected into future prompts — matched across every project in the workspace.
Reusable styling rules for an entire genre — switch templates per project.
Pipeline
From raw scan to finished translation.
Four automated stages turn an unedited manga page into a clean, translated release — no Photoshop required.
Upload
Raw manga page with original text
OCR Detect
AI finds every text bubble
Translate
Text replaced with target language
Inpaint
Original text erased, clean artwork
Your keys, your buckets
Translate for the
cost of OCR.
Plug in your own API key and translation costs zero credits. Only OCR and inpainting are billed — no matter how many languages you target.
Switch on the fly
Change engine or model per chapter — even mid-project — without leaving the editor.
Dial in reasoning
Set the thinking level per model (off / low / medium / high) and add your own translation prompt.
Rate-limit aware
Per-credential concurrency and RPM limits keep your jobs flowing instead of hitting 429s.
Works with your provider
No key? Shared DeepL & Jokai models engines are included on every plan.
Per 100 pages · 3 languages
Translation is free with your key
Bring your own storage, too
Unlimited pages in your bucket — outside every quota and purge policy
Jokai storage
Plan quota. On lapsed accounts: 1 GB kept, oldest pages purged after 6 months.
Your S3 bucket
Unlimited — your lifecycle rules apply. We never delete a single byte.
Up to 5 buckets · pick per project · credentials encrypted (AES-256-GCM)
API & automation
Automate the whole pipeline.
Everything the studio does is available over a clean REST API with versioned keys, per-key rate limits and transparent credit accounting in every response header.
One-shot translate endpoint
POST an image, get back every block — source text, translation, coordinates, confidence — plus the cleaned, inpainted artwork.
The whole pipeline, scripted
Projects, chapters, multipart uploads, dispatch OCR / translation / inpaint, retry failed pages, fetch results, export ZIP.
Signed webhook events
HMAC-SHA256 notifications when any page completes or fails — build automations without polling.
Server renders, pixel-identical
Request final composed pages up to 4× — rendered by the same engine as the editor, identical by construction.
Request
curl -X POST https://api.jokai.app/api/v1/translate
-H "Authorization: Bearer jk_live_…" \
-F "image=@page_01.jpg" \
-F "target_lang=en"
Response
{
"detected_source_lang": "ja",
"blocks": [
{ "text": "急げ!", "translation": "Hurry!",
"bbox": [312, 118, 458, 196], "confidence": 0.98 },
… 98 more blocks ],
"cleaned_image_url": "https://…/page_01_clean.webp"
}
Formats
One studio for every visual & literary format.
Each format gets a pipeline tuned to its layout — from B&W manga panels to vertical webtoon strips and prose novels.
Manga
Right-to-left pages with bubbles, narration and SFX. Vertical text, furigana and complex panel layouts handled.
- Vertical text & furigana
- Speech bubble detection
- SFX preservation
Webtoon
Vertical-scroll color comics with text overlays, optimized for mobile-first artwork.
- Color artwork
- Inline text detection
- Mobile-first layout
Comics
Western left-to-right comics with caption boxes, thought bubbles and multi-panel pages.
- Left-to-right layout
- Caption box detection
- Multi-panel support
Light novel
SoonChapter-based text extraction with glossary consistency and prose-aware formatting.
- Chapter text extraction
- Glossary consistency
- Prose formatting