Bun vs Steel.dev
Bun vs Steel.dev, compared side by side on 14 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 Steel.dev on 58/100.
Where each one leads
Bun
- domain rating: 82/100 against 50/100
Steel.dev
- agent readiness: 54/100 against 43/100
- funding raised: $17.0M against $7.0M
At a glance
| Measure | Bun | Steel.dev |
|---|---|---|
| What it is | A fast, all-in-one JavaScript toolkit including a runtime, bundler, test runner, and package manager. | Cloud-based browser API for AI agents, simplifying web automation with anti-bot protection and session persistence. |
| Category | Developer Tools, JavaScript Runtime, Bundler, Transpiler | Developer Tools, API Platform, Workflow Automation, AI Agents |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Platform |
| Founded | 2021 | 2022 |
| Headquarters | San Francisco, United States | Tel Aviv, Israel |
| Status | Active | Active |
Size, funding and growth
| Measure | Bun | Steel.dev |
|---|---|---|
| Total funding | $7.0M | $17.0M |
| Latest round | Not published | Series A |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Bun | Steel.dev |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 59/100 | 58/100 |
| Traction | Not published | 36/100 |
| Team | Not published | 60/100 |
| Community | Not published | 16/100 |
| Search visibility | Not published | 38/100 |
| Quality | Not published | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (43/100) | D (54/100) |
| Domain ratingLink authority, 0-100 | 82/100 | 50/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Bun | Steel.dev |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Cloudflare | Not detected |
| CMS | Not detected | Framer |
| Frameworks | Tailwind CSS | Not detected |
| Analytics | Plausible | Google Tag Manager |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
What users say
| Measure | Bun | Steel.dev |
|---|---|---|
| Community ratingVisitor votes on StartupHub | Not published | 3.0/5 from 1 vote |
Bun vs Steel.dev: common questions
Which is better, Bun or Steel.dev?
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 14 data points above: read the rows that match what you are buying for.
How do Bun and Steel.dev compare on the numbers?
Bun leads on domain rating (82/100 against 50/100). Steel.dev leads on agent readiness (54/100 against 43/100), funding raised ($17.0M against $7.0M).
Read the full Bun review and pricing or the Steel.dev review and pricing. You can also browse other Bun alternatives we track.