Bun vs Cypress
Bun vs Cypress, 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 Cypress on 58/100.
Where each one leads
Bun
Leads on none of the measures we hold for both companies.
Cypress
- agent readiness: 49/100 against 43/100
- funding raised: $53.3M against $7.0M
At a glance
| Measure | Bun | Cypress |
|---|---|---|
| What it is | A fast, all-in-one JavaScript toolkit including a runtime, bundler, test runner, and package manager. | A developer-friendly testing framework for the modern web. |
| Category | Developer Tools, JavaScript Runtime, Bundler, Transpiler | Developer Tools, Testing Framework, JavaScript Testing, End-to-End Testing |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Platform |
| Founded | 2021 | 2017 |
| Headquarters | San Francisco, United States | Atlanta, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Bun | Cypress |
|---|---|---|
| Employees | Not published | 29 |
| Total funding | $7.0M | $53.3M |
| Latest round | Not published | Series B |
| Valuation | Not published | $247M |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Bun | Cypress |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 59/100 | 58/100 |
| Traction | Not published | 53/100 |
| Team | Not published | 70/100 |
| Search visibility | Not published | 13/100 |
| Quality | Not published | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (43/100) | D (49/100) |
| Domain ratingLink authority, 0-100 | 82/100 | 82/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Bun | Cypress |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Cloudflare | Cloudflare |
| Frameworks | Tailwind CSS | Astro, Tailwind CSS |
| Analytics | Plausible | Google Tag Manager |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
Bun vs Cypress: common questions
Which is better, Bun or Cypress?
On our 0-100 score Bun rates higher (59/100 against 58/100). 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 Cypress compare on the numbers?
Cypress leads on agent readiness (49/100 against 43/100), funding raised ($53.3M against $7.0M).
Read the full Bun review and pricing or the Cypress review and pricing. You can also browse other Bun alternatives we track.