Papeeria

Papeeria is an online LaTeX editor for projects that can also mix LaTeX with Markdown. It runs in a browser and is available on Android and iOS. Projects compile continuously in the background with a full TeX Live environment. The editor provides real-time collaboration, margin discussions, autocompletion, spellchecking, and instant mathematical previews. Templates cover CVs, ACM journal papers, and math presentations. Users can create plots with built-in gnuplot or Plot.ly and run custom gnuplot scripts. Sharing supports read or write access controlled by permissions, while collaborators can edit together, receive update notifications, and join without a collaborator-count limit. Git, Google Drive, and Dropbox synchronization are available, with Mendeley integration on Delta. The free Epsilon plan costs nothing and includes one active private project, unlimited public projects and collaborators, 24-hour file history, and public-repository Git sync. Delta costs $5 a month and adds up to 10 private projects, 30-day history, private templates, cloud sync, snapshots, and integrations.

Papeeria combines LaTeX authoring, Markdown mixing, compilation, plotting, and collaborative editing. The free plan supports basic projects, while Delta expands private-project capacity, history, synchronization, and integrations.

Epsilon is described for students and people learning LaTeX. Delta is aimed at individuals and small groups needing additional private projects, history, integrations, and compiling options.

Papeeria is an online workspace for technical documents, combining LaTeX editing with Markdown. It is most compelling for students and small groups who need to write and revise together; its private-project limits make it less suited to anyone who needs a large free archive.

Overview

Papeeria handles compilation in the background and provides a full TeX Live environment in the browser, avoiding the need to set up a local distribution. LaTeX-and-Markdown mixing gives authors another way to structure documents, while shared editing and permission controls support group work. The trade-off is a service-dependent workflow with tighter limits on the free plan.

Projects can be shared with read or write access, and collaborators can edit simultaneously, receive update notifications, and join without a collaborator-count cap. That openness is useful for classes and research teams, though owners should assign permissions deliberately when not everyone needs editing access.

Key features

Editing and compilation

Autocompletion, spellchecking, margin discussions, and instant math preview address common needs in technical writing. Continuous compilation makes errors visible as work progresses, and the browser-based TeX Live environment is a meaningful advantage for authors who do not want to maintain a local LaTeX setup.

Free-plan compilation is subject to a 60-second limit per cycle and a 64 MB total disk limit for project compilation files. Those caps may be workable for learning and modest documents, but demanding projects have less room to compile than they would under an unrestricted workflow.

Templates and plots

The gallery includes CV, ACM journal paper, and math presentation templates, giving users a starting point for several common document types. Built-in gnuplot and Plot.ly support, plus the ability to run custom gnuplot scripts, make plots part of the writing environment rather than a separate step.

History, sync, and resilience

Papeeria keeps per-file edit history and whole-project snapshots. Epsilon retains file history for 24 hours, while Delta extends that window to 30 days and adds backup snapshots. Git sync is available on both plans for public repositories; Delta extends it to private repositories and adds Dropbox and Google Drive sync, along with Mendeley integration.

The service says its servers operate in two independent locations and describes a Carbon Copy service for accessing data after a main-service disaster. This is a useful continuity measure, but it does not remove the everyday dependence on an online service.

Pricing

Papeeria uses a freemium model. Epsilon is free forever at no cost, and is described as suitable for students and people learning LaTeX. It includes unlimited public projects and collaborators, but only one active private project, 24-hour file history, and Git sync for public repositories. That makes it a sensible entry point for coursework or public writing, not a generous home for multiple private projects.

Delta starts from $5/month, billed at $5 a month. It allows up to 10 active private projects and adds auto compiling and priority compiling, private templates, Git sync for private repositories, 30-day file history, Dropbox and Google Drive sync, backup snapshots, and gnuplot and Mendeley integrations. Individuals and small groups who need those private-work and synchronization features are the clearest fit; the 10-project ceiling still matters for larger workloads.

Both plans allow unlimited collaborators, so the main free-to-paid distinction is project capacity and extended workflow features rather than seats. Delta is the practical choice when one private project is not enough or longer history and private-repository sync matter.

Platforms

Papeeria is available on the web, Android, and iOS. The browser-based TeX environment is central to its appeal; readers seeking a desktop-only editor should consider other options.

Who it's for

Students and LaTeX learners can start with Epsilon, particularly when public projects or a single active private project are enough. Researchers and small groups are better served by Delta when they need multiple private projects, longer history, private Git sync, or cloud-drive synchronization. Papeeria is a weaker fit for users who require more than 10 active private projects on the paid plan or prefer a local desktop workflow.

Pros and cons

Pros

• Unlimited collaborators: groups can work together without a collaborator cap, with read and write permissions available.
• Browser-based TeX Live: authors can compile LaTeX without setting up a local distribution.
• Technical-writing tools: math preview, margin discussions, templates, and plotting support address needs beyond plain text editing.
• Useful Delta upgrades: private-project capacity, longer history, private Git sync, and cloud-drive sync target concrete workflow needs.

Cons

• Strict free private-project allowance: Epsilon permits only one active private project.
• Compilation caps on free: 60 seconds per cycle and 64 MB of project compilation files can constrain larger work.
• Short free history: file history covers only the last 24 hours, versus 30 days on Delta.
• Online-service dependence: the core editing and compilation setup is browser-based rather than a local desktop environment.

Alternatives

For an app with limited free project and document counts, Verbosus offers a free plan with caps on local and cloud projects, documents, and uploads. VerbTeX is another freemium option, with a broader platform range that includes macOS and Windows as well as web and mobile.

Texifier is a paid alternative with a free trial and one-time per-seat license pricing; it is worth considering for readers seeking that licensing model and its iOS, macOS, and Windows platform coverage. JianTeX is free and open source, with desktop, online, and self-hosted options, making it a better candidate for readers who want self-hosting.

Overleaf offers unlimited projects on its free plan but limits each project to one collaborator, so it is a more natural fit for solo authors than Papeeria's uncapped collaboration. Oleafly is a free desktop app for Linux, macOS, and Windows, while Prism is a free web editor with unlimited projects, collaborators, compile time, and compile speed. Texmaker is a free desktop LaTeX editor, but requires a separate LaTeX distribution.

Browse more options in LaTeX Editors, Document Collaboration Software, and Writing Apps.

Verdict

Choose Papeeria if you want browser-based LaTeX with continuous compilation and genuinely open-ended group collaboration. The free plan is a good way to learn or handle public work, while Delta is the more credible option for recurring private projects and longer history. Look elsewhere if the free private-project cap or compilation limits are unacceptable, or if you want a desktop-first editor.