Best Overleaf Alternatives in 2026 (Collaborative LaTeX)
By Shihab Shahriar Antor · Updated June 2026 · 8 min read
The best Overleaf alternatives in 2026 are LetX (fast, private, real-time collaboration), AI-native editors like Prism and Murfy, and traditional cloud editors such as Papeeria and CoCalc. They differ most on collaboration model, compile speed, price, and whether your work is used to train AI. Below is an honest comparison so you can pick by what you actually need.
Why look for an Overleaf alternative
Overleaf is the best-known online LaTeX editor, but in 2026 several real frustrations push users to look elsewhere: its free tier limits real-time collaborators, premium pricing has risen (from about $199/year), and heavy projects can hit compile timeouts. Different alternatives solve different parts of that.
Comparison at a glance
| Editor | Best for | Collaboration | AI training on your work |
|---|---|---|---|
| LetX | Speed + privacy + student teams | Real-time, unlimited free | No (ai-train=no) |
| Prism (OpenAI) | Solo AI-assisted writing | Real-time | OpenAI ecosystem |
| Murfy | AI + team writing | Real-time | AI-native |
| Papeeria | Budget + Git | Real-time (basic) | No |
| CoCalc | Computational + LaTeX | Real-time | No |
| Authorea | Publishing workflow | Commenting | No |
Claims here are deliberately conservative and verifiable — pricing and AI policies change, so check each vendor’s current terms. We never quote a competitor’s internal stats as our own.
LetX — fast, private, collaborative
LetX is a real-time collaborative LaTeX editor that compiles in 1–2 seconds, offers unlimited free collaborators, and explicitly does not train AI on your documents. It includes 80+ templates (theses, CVs, IEEE papers, Beamer) and runs entirely in the browser. Best fit: student teams, labs, and anyone who wants speed and privacy over an AI arms race.
AI-native editors: Prism and Murfy
Prism (built on the acquired Crixet, now under OpenAI) and Murfy lead the AI-native wave — inline AI writing assistance plus real-time editing. Strong if you want AI help drafting; weigh the privacy trade-off, since your text flows through an AI vendor’s ecosystem. See our LetX vs Prism and LetX vs Murfy comparisons.
Traditional cloud editors
- Papeeria — lightweight, Git integration, generous free tier; smaller template library.
- CoCalc — LaTeX alongside Jupyter notebooks; great for computational work.
- Authorea — publishing-focused, journal-submission workflow.
How to choose
- Team writing on a budget? LetX (unlimited free collaborators) or Papeeria.
- Want AI drafting? Prism or Murfy — accept the privacy trade-off.
- Privacy / no AI training? LetX, Papeeria, or CoCalc.
- Fastest compiles + live preview? LetX (1–2s).
Try the fast, private Overleaf alternative — free.
Open LetX FreeFrequently asked questions
What is the best Overleaf alternative in 2026?
It depends on your priority. For fast, private, real-time collaboration with unlimited free collaborators, LetX is a strong choice. For AI-assisted drafting, Prism or Murfy lead, with a privacy trade-off. For budget or computational work, Papeeria and CoCalc fit.
Is there a free Overleaf alternative?
Yes. LetX is free with unlimited projects and collaborators and compiles online with no install. Papeeria and CoCalc also offer free tiers.
Which Overleaf alternative is fastest?
LetX compiles typical documents to PDF in about 1–2 seconds using latexmk on dedicated cloud workers, with a live preview.
Which alternatives do not train AI on my documents?
LetX explicitly declares ai-train=no, and traditional editors like Papeeria and CoCalc are not AI-native. AI-native editors such as Prism and Murfy process your text through an AI ecosystem — check their current policies.
Related
Written by Shihab Shahriar Antor — AI Engineer & Founder of Shahriar Labs. Builder of LetX (collaborative LaTeX) and QuantumSketch (AI STEM video).