Julia vs Mastra
Julia vs Mastra, compared side by side on 20 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: Julia is on 61/100 and Mastra on 77/100.
Where each one leads
Julia
Leads on none of the measures we hold for both companies.
Mastra
- our overall score: 77/100 against 61/100
- agent readiness: 58/100 against 45/100
- funding raised: $35.5M against $15.0M
At a glance
| Measure | Julia | Mastra |
|---|---|---|
| What it is | A high-performance, dynamic programming language for technical computing. | An open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby. |
| Category | Programming Languages, High-Performance Computing, Data Science, Machine Learning | Agentic AI, AI Agents, Developer Tools, Open Source |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Platform |
| Founded | 2012 | 2024 |
| Headquarters | Waltham, USA | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Julia | Mastra |
|---|---|---|
| Employees | Not published | 53 |
| Headcount growthLast 12 months | Not published | +204.5% |
| Total funding | $15.0M | $35.5M |
| Latest round | Series A | Series A |
| Valuation | $1.1B | Not published |
| LinkedIn followers | Not published | 6,591 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Julia | Mastra |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 61/100 | 77/100 |
| Traction | 36/100 | 70/100 |
| Team | 70/100 | 90/100 |
| Community | Not published | 38/100 |
| Search visibility | 13/100 | 68/100 |
| Quality | 78/100 | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (45/100) | D (58/100) |
| Domain ratingLink authority, 0-100 | 79/100 | 76/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Julia | Mastra |
|---|---|---|
| Hosting | Not detected | Vercel |
| CDN | Fastly | Vercel |
| Frameworks | Bootstrap | Next.js, Tailwind CSS |
| Analytics | Plausible | Not detected |
| Open source | No | Yes, 15,100 GitHub stars |
| Self-hostable | No | Yes |
Product and pricing
| Measure | Julia | Mastra |
|---|---|---|
| Key features | Not published | AI Agent Framework, Workflows, RAG, Evals, Memory & Tool Selection, Open Source & Modular |
What users say
| Measure | Julia | Mastra |
|---|---|---|
| Community ratingVisitor votes on StartupHub | Not published | 5.0/5 from 2 votes |
| Reddit sentimentThreads we track | 1 positive, 0 negative across 1 thread | Not published |
“The Julia Language Subreddit. Julia is a high-level, high-performance dynamic programming language for technical computing, with syntax that is familiar to users of other technical computing environments.”r/
Julia vs Mastra: common questions
Which is better, Julia or Mastra?
On our 0-100 score Mastra rates higher (77/100 against 61/100). 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 20 data points above: read the rows that match what you are buying for.
How do Julia and Mastra compare on the numbers?
Mastra leads on our overall score (77/100 against 61/100), agent readiness (58/100 against 45/100), funding raised ($35.5M against $15.0M).
What do real users say about Julia and Mastra?
Julia: 1 positive and 0 negative mentions across 1 Reddit threads we track.
Read the full Julia review and pricing or the Mastra review and pricing. You can also browse other Julia alternatives we track.