WriterDuet vs Arc Studio vs Mangaplay Studio

If you write scripts — whether for film, TV, comics, or webtoons — the tool you choose shapes how fast you can get ideas onto the page and into a format others can work with. Three names keep coming up in 2026: WriterDuet, Arc Studio, and Mangaplay Studio. They each approach the same problem from a different angle. This article breaks down what each tool does, who it is for, and how they compare.

WriterDuet — Collaboration First

WriterDuet was built by screenwriter and programmer Guy Goldstein to solve a single problem: there was no good way to co-write a screenplay in real time. That remains its defining feature.

What it does: WriterDuet is a cloud-based screenwriting platform that auto-formats scripts to industry standards. You can import and export practically anything — FDX, Fountain, PDF, Celtx — and the formatting fidelity is about 95% accurate on import. The "Time Machine" feature saves every keystroke with timestamps and attribution, so you can restore any version at any point.

Standout features: Real-time collaboration is the centrepiece. Multiple writers can work in the same document simultaneously. An outlining tool uses virtual notecards that can be arranged on a grid or dropped freely into a mind map mode. The free tier lets you write three full scripts with no time limit.

Who it is for: Co-writing teams, writers rooms, and anyone who needs to collaborate on a screenplay. Also works well for solo writers who want robust import/export and industry-standard formatting.

Pricing: Free for up to 3 scripts. Pro plans start around $12/month or $99/year with collaboration and full features.

Arc Studio — The Modern Workhorse

Arc Studio is a web-based screenwriting platform built around the idea that writing is iterative. It has gained traction with Hollywood pros including David Wain (Wet Hot American Summer) and Christian Linke (Arcane).

What it does: Arc Studio covers the full writing pipeline — brainstorming, structuring, drafting, and collaboration. The beat board uses a Kanban-style layout where you can group, colour, and tag ideas. "Elements" let you create storylines, character profiles, and locations with automatic backlinks. The "Stash" feature holds snippets that are not good enough to keep but too good to delete. "Branch Copy" lets you fork a draft to experiment without touching the original.

Standout features: The Stash and Branch Copy reflect a deep understanding of how writers actually work — trying things, saving scraps, and needing a safe space to experiment. Real-time collaboration with tracked changes works like Google Docs. A left sidebar quadruples as a draft list, table of contents, comment panel, and notes panel.

Who it is for: Solo screenwriters and small teams who want a modern, structured writing environment. Particularly strong for writers who outline heavily before drafting.

Pricing: Free tier supports 2 scripts with limited features. Pro is $69/year (limited feature set) or $99/year with the full suite including collaboration and production tools. Heavy student discounts available.

Downsides: The web-based interface can feel clunky. Users report occasional bugs and freezes. Final export polish often requires finishing in Final Draft. The iOS and desktop apps are thin wrappers around the web code.

Mangaplay Studio — From Script to Storyboard

Mangaplay Studio is not a traditional screenwriting tool. It is a text-to-storyboard engine built for writers of visual media — manga, comics, webtoons, and screenplays — who want to see their script rendered as panels as they type.

What it does: You write in a plain-text format called Fountain++ (an extension of the Fountain screenplay format with panel and page markup). As you type, Mangaplay Studio renders your script into visual storyboard pages with dialogue balloons, action lines, sound effects, and panel borders — instantly, in the browser. There is no drawing, no drag-and-drop, and no AI generation. The layout is calculated mathematically, like typesetting.

Standout features: The Chrome extension brings the storyboard engine directly into Google Docs. You write a script in a Google Doc and see a live storyboard preview update as you type. Everything runs in your browser — no servers, no sign-up, no file uploads. Exports include PDF screenplay format and plain text. It works offline.

Who it is for: Manga, comic, and webtoon creators who write scripts and need to communicate page layouts to artists. Screenwriters who want to visualise their scenes as panels before production. Solo creators and small teams who want a zero-friction tool that works in the tools they already use (Google Docs).

Pricing: Completely free. No sign-up required. No feature gates.

Comparison Summary

| | WriterDuet | Arc Studio | Mangaplay Studio | |---|---|---|---| | Best for | Co-writing teams | Outlining-heavy solo/team writers | Manga/comic/webtoon creators | | Real-time collaboration | Core feature | Available (Pro tier) | Not a focus | | Auto-formatting | Industry standard | Industry standard | Screenplay + custom panel layout | | Storyboard/visual output | No | No | Yes — real-time rendered panels | | Google Docs integration | No | No | Yes — Chrome extension | | Offline | Limited | No | Yes — runs in browser | | AI | None | Built-in (notes, optional) | None — math-based layout | | Free tier | 3 scripts | 2 scripts | Unlimited | | Paid | ~$12/mo or $99/yr | $69-$99/yr | Free |

Which One Should You Choose?

Choose WriterDuet if you co-write regularly and need real-time collaboration with rock-solid import/export. The Time Machine revision history and mind map outlining make it the strongest choice for teams.

Choose Arc Studio if you are a solo screenwriter or small team who wants a modern, structured writing environment with powerful outlining, stash, and branching tools. It is the most thoughtfully designed of the three for the actual writing process.

Choose Mangaplay Studio if you write manga, comics, or webtoons and need to see your script turn into visual pages. It is the only tool in this comparison that produces storyboard output — and it does it for free, with no sign-up, directly in Google Docs.

These three tools are not direct competitors. They solve different parts of the creative pipeline. WriterDuet is for collaboration. Arc Studio is for structure. Mangaplay Studio is for visualisation. A writer could reasonably use all three at different stages of a project.