Convex vs Mastra
Convex vs Mastra, compared side by side on 22 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Convex is on 43/100 and Mastra on 77/100.
Where each one leads
Convex
Leads on none of the measures we hold for both companies.
Mastra
- our overall score: 77/100 against 43/100
- agent readiness: 58/100 against 43/100
- headcount: 53 against 41
At a glance
| Measure | Convex | Mastra |
|---|---|---|
| What it is | Real-time backend as a service with a reactive database, built in pure TypeScript. | An open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby. |
| Category | Backend as a Service, Developer Tools, Real-time Data, Database | Agentic AI, AI Agents, Developer Tools, Open Source |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2021 | 2024 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Convex | Mastra |
|---|---|---|
| Employees | 41 | 53 |
| Headcount growthLast 12 months | Not published | +204.5% |
| Total funding | Not published | $35.5M |
| Latest round | Not published | Series A |
| LinkedIn followers | 5,734 | 6,591 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Convex | Mastra |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 43/100 | 77/100 |
| Traction | 16/100 | 70/100 |
| Team | 30/100 | 90/100 |
| Community | 15/100 | 38/100 |
| Search visibility | 25/100 | 68/100 |
| Quality | 58/100 | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (43/100) | D (58/100) |
| Domain ratingLink authority, 0-100 | 78/100 | 76/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Convex | Mastra |
|---|---|---|
| Hosting | Vercel | Vercel |
| CDN | Vercel | Vercel |
| Frameworks | Next.js, Tailwind CSS | Next.js, Tailwind CSS |
| Open source | Yes | Yes, 15,100 GitHub stars |
| Self-hostable | No | Yes |
Product and pricing
| Measure | Convex | Mastra |
|---|---|---|
| Key features | Not published | AI Agent Framework, Workflows, RAG, Evals, Memory & Tool Selection, Open Source & Modular |
What users say
| Measure | Convex | Mastra |
|---|---|---|
| Community ratingVisitor votes on StartupHub | Not published | 5.0/5 from 2 votes |
Convex vs Mastra: common questions
Which is better, Convex or Mastra?
On our 0-100 score Mastra rates higher (77/100 against 43/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 22 data points above: read the rows that match what you are buying for.
How do Convex and Mastra compare on the numbers?
Mastra leads on our overall score (77/100 against 43/100), agent readiness (58/100 against 43/100), headcount (53 against 41).
Read the full Convex review and pricing or the Mastra review and pricing. You can also browse other Convex alternatives we track.