TL;DR: If you are replacing Bun, the closest options are Hey Healthcare, Operand, Plutis. The table below compares 12 alternatives on what they do, stage, size and status.
Every alternative below is compared on what it actually does, not just its category — so you can see which one genuinely replaces Bun (YC Summer 2019).
Last verified:
The three closest alternatives to Bun are:
| Alternative | What it does | Stage | Team | Status |
|---|---|---|---|---|
| Hey Healthcare | — | YC Summer 2019 | 1 | Inactive |
| Operand | — | YC Winter 2025 | 8 | Active |
| Plutis | — | YC Winter 2023 | 2 | Active |
| Demospace | — | YC Winter 2023 | 2 | Inactive |
| Galaxy | — | YC Winter 2021 | 2 | Inactive |
| Ollama | Get up and running with large language models. | YC Winter 2021 | — | Active |
| Holy Grail | — | YC Summer 2019 | 7 | Active |
| Retool | Build internal tools fast. | YC Winter 2017 | 300 | Active |
| BuildBuddy | BuildBuddy provides enterprise features for Bazel — the open source… | YC Winter 2020 | 15 | Active |
| AXAR AI | How great teams ship with AI | YC Winter 2021 | 4 | Inactive |
| PetaSales | — | YC Winter 2009 | 2 | Inactive |
| Snapboard | — | YC Winter 2020 | 2 | Inactive |
It depends on your size. Hey Healthcare is the closest match on what Bun actually does. If you need something more established, sort the table by team size — larger teams generally mean more support and a longer track record. If budget is the constraint, the earlier-batch companies are usually the ones still competing on price.
Bun has been acquired, which often means pricing, roadmap or support changes. That is the usual reason people start looking at this list.
Every company here is Y Combinator-backed and was matched to Bun on what it actually does — its own description of its product — rather than on a broad category label. Batch, team size and operating status come from the YC directory and are shown as-is. We do not rank by payment.
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