Crates / google-cloud-pubsub / Alternatives
Rust crate alternatives · data Oct 27, 2026
Alternatives to google-cloud-pubsub
Short answerThe closest alternatives to google-cloud-pubsub on crates.io data are azure_core (117K real downloads a day), azure_identity (97.2K real downloads a day), gcp_auth (45.4K real downloads a day). Of the 8 we list, the most used is azure_core, and 5 shipped a release in the last year. google-cloud-pubsub itself gets 23,332 a day with 29 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs google-cloud-pubsub | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| azure_core Established | 117,077 | 5.02x | 485 | 52d | keyword "sdk" | compare |
| azure_identity Established | 97,200 | 4.17x | 134 | 52d | keyword "sdk" | compare |
| gcp_auth Pulled in | 45,402 | 1.95x | 75 | 4mo | keyword "gcp" | compare |
| azure_storage Pulled in | 22,495 | 0.96x | 37 | 2.0y | keyword "sdk" | compare |
| azure_storage_blobs Pulled in | 21,454 | 0.92x | 34 | 2.0y | keyword "sdk" | compare |
| axiom-rs Pulled in | 2,557 | 0.11x | 1 | 5mo | keyword "sdk" | compare |
| azure_security_keyvault Pulled in | 1,097 | 0.05x | 10 | 2.0y | keyword "sdk" | compare |
| infisical Pulled in | 171 | 0.01x | 2 | 6d | keyword "sdk" | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with google-cloud-pubsub; 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 google-cloud-pubsub: 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 google-cloud-pubsub, 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 losing ground. 117,077 real downloads a day.azure_coreRust crate. Rust wrappers around Microsoft Azure REST APIs - Core crate. Real use: 117K downloads a day on quiet days; 485 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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