Bun vs Marimo
Bun vs Marimo, compared side by side on 16 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: Bun is on 59/100 and Marimo on 40/100.
Where each one leads
Bun
- our overall score: 59/100 against 40/100
- domain rating: 83/100 against 71/100
Marimo
- funding raised: $4.5B against $7.0M
At a glance
| Measure | Bun | Marimo |
|---|---|---|
| What it is | A fast, all-in-one JavaScript toolkit including a runtime, bundler, test runner, and package manager. | Open-source reactive Python notebook for data and AI workloads. |
| Category | Developer Tools, JavaScript Runtime, Bundler, Transpiler | Developer Tools, Data Science, AI Infrastructure, Open Source |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Software |
| Founded | 2021 | 2021 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Bun | Marimo |
|---|---|---|
| Employees | Not published | 11 |
| Total funding | $7.0M | $4.5B |
| Latest round | Not published | Seed |
| LinkedIn followers | Not published | 7,113 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Bun | Marimo |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 59/100 | 40/100 |
| Traction | Not published | 51/100 |
| Team | Not published | 70/100 |
| Community | Not published | 12/100 |
| Search visibility | Not published | 30/100 |
| Quality | Not published | 30/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (43/100) | D (46/100) |
| Domain ratingLink authority, 0-100 | 83/100 | 71/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Bun | Marimo |
|---|---|---|
| Hosting | Vercel | Vercel |
| CDN | Cloudflare | Vercel |
| Frameworks | Tailwind CSS | Next.js, Tailwind CSS |
| Analytics | Plausible | Not detected |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
Bun vs Marimo: common questions
Which is better, Bun or Marimo?
On our 0-100 score Bun rates higher (59/100 against 40/100). 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 16 data points above: read the rows that match what you are buying for.
How do Bun and Marimo compare on the numbers?
Bun leads on our overall score (59/100 against 40/100), domain rating (83/100 against 71/100). Marimo leads on funding raised ($4.5B against $7.0M).
Read the full Bun review and pricing or the Marimo review and pricing. You can also browse other Bun alternatives we track.