Backstage vs Bun
Backstage vs Bun, compared side by side on 15 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: Backstage is on 57/100 and Bun on 59/100.
Where each one leads
Backstage
- funding raised: $63.0M against $7.0M
Bun
- agent readiness: 43/100 against 30/100
At a glance
| Measure | Backstage | Bun |
|---|---|---|
| What it is | An open-source developer portal for building and managing software. | A fast, all-in-one JavaScript toolkit including a runtime, bundler, test runner, and package manager. |
| Category | Developer Tools, MLOps, DevInfra, Open Source | Developer Tools, JavaScript Runtime, Bundler, Transpiler |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Software |
| Founded | 2016 | 2021 |
| Headquarters | Stockholm, Sweden | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Backstage | Bun |
|---|---|---|
| Employees | 18,703 | Not published |
| Total funding | $63.0M | $7.0M |
| Latest round | Series B | Not published |
| Valuation | $1.1B | Not published |
| LinkedIn followers | 4,542,046 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Backstage | Bun |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 57/100 | 59/100 |
| Traction | 59/100 | Not published |
| Team | 10/100 | Not published |
| Search visibility | 45/100 | Not published |
| Quality | 68/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | F (30/100) | D (43/100) |
| Domain ratingLink authority, 0-100 | 75/100 | 82/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Backstage | Bun |
|---|---|---|
| Hosting | Not detected | Vercel |
| CDN | Fastly | Cloudflare |
| Frameworks | Not detected | Tailwind CSS |
| Analytics | Google Analytics 4 | Plausible |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
Backstage vs Bun: common questions
Which is better, Backstage or Bun?
On our 0-100 score Bun rates higher (59/100 against 57/100). 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 15 data points above: read the rows that match what you are buying for.
How do Backstage and Bun compare on the numbers?
Backstage leads on funding raised ($63.0M against $7.0M). Bun leads on agent readiness (43/100 against 30/100).
Read the full Backstage review and pricing or the Bun review and pricing. You can also browse other Backstage alternatives we track.