Crates / pulsar / Alternatives
Rust crate alternatives · data Oct 27, 2026
Alternatives to pulsar
Short answerThe closest alternatives to pulsar on crates.io data are async-nats (67.7K real downloads a day), vaultrs (32.3K real downloads a day), etcd-client (30.4K real downloads a day). Of the 8 we list, the most used is rustix, and 7 shipped a release in the last year. pulsar itself gets 6,483 a day with 25 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs pulsar | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| async-nats Established | 67,650 | 10.44x | 356 | 1d | keyword "api", keyword "client" | compare |
| vaultrs Pulled in | 32,253 | 4.98x | 42 | 7mo | keyword "api", keyword "client" | compare |
| etcd-client Pulled in | 30,381 | 4.69x | 76 | 8d | keyword "api", keyword "client" | compare |
| cloudflare Pulled in | 861 | 0.13x | 13 | 20mo | keyword "api", keyword "client" | compare |
| nats Pulled in | 625 | 0.10x | 28 | 7mo | keyword "api", keyword "client" | compare |
| shopify_api Pulled in | 14 | 0.00x | 0 | 0d | keyword "api", keyword "client" | compare |
| rustix Widely used | 3,390,892 | 523.04x | 1,684 | 38d | keyword "api" | compare |
| ureq Widely used | 840,482 | 129.64x | 4,472 | 3d | keyword "client" | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with pulsar; read its description before you swap.
- More dependents means more answered questions and a smaller chance it disappears.
- Check the last release against how fast you need fixes. For pulsar: is it still maintained?
Rules
Alternatives = tracked crates (top 1000 by downloads) that share a specific crates.io category (2 points each) or keyword (3 points each) with pulsar, most similar first; its own parts (same name prefix) and crates it depends on or that depend on it are left out, because those are companions, not substitutes. Real downloads = quiet-day median, crates.io data Oct 27, 2026. Built when we find 3 or more.
Up next
The closest alternative: Established and steady. 67,650 real downloads a day.async-natsRust crate. A async Rust NATS client. Real use: 67.7K downloads a day on quiet days; 356 crates depend on it.Read it next →Also worth your time
Art: Nicholas Roerich, Nag Lake (1925). Public domain, via Wikimedia Commons.
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