Crates / cargo-tarpaulin / Alternatives
Rust crate alternatives · data Oct 27, 2026
Alternatives to cargo-tarpaulin
Short answerThe closest alternatives to cargo-tarpaulin on crates.io data are assert-json-diff (491K real downloads a day), semver (2.8M real downloads a day), static_assertions (1.4M real downloads a day). Of the 8 we list, the most used is semver, and 5 shipped a release in the last year. cargo-tarpaulin itself gets 3,414 a day with 28 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs cargo-tarpaulin | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| assert-json-diff Established | 491,066 | 143.84x | 178 | 4.3y | category Development tools, keyword "testing" | compare |
| semver Widely used | 2,771,038 | 811.67x | 4,141 | 7mo | keyword "cargo" | compare |
| static_assertions Widely used | 1,442,265 | 422.46x | 1,688 | 7.0y | keyword "testing" | compare |
| proptest Foundational | 663,355 | 194.30x | 12,243 | 14d | keyword "testing" | compare |
| arbitrary Widely used | 574,083 | 168.16x | 1,030 | 18d | keyword "testing" | compare |
| rusty-fork Pulled in | 504,858 | 147.88x | 87 | 13mo | keyword "testing" | compare |
| serial_test Widely used | 429,325 | 125.75x | 2,974 | 3mo | keyword "testing" | compare |
| mockall Widely used | 406,667 | 119.12x | 1,393 | 4mo | keyword "testing" | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with cargo-tarpaulin; 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 cargo-tarpaulin: 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 cargo-tarpaulin, 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 quiet for years. 491,066 real downloads a day.assert-json-diffRust crate. Easily compare two JSON values and get great output. Real use: 491K downloads a day on quiet days; 178 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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