Crates / secp256k1-sys / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to secp256k1-sys
Short answerThe closest alternatives to secp256k1-sys on crates.io data are libc (5M real downloads a day), linux-raw-sys (3.3M real downloads a day), winapi (1.3M real downloads a day). Of the 8 we list, the most used is libc, and 7 shipped a release in the last year. secp256k1-sys itself gets 271,321 a day with 8 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs secp256k1-sys | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| libc Foundational | 4,964,021 | 18.30x | 17,338 | 8d | keyword "ffi" | compare |
| linux-raw-sys Pulled in | 3,305,436 | 12.18x | 39 | 10mo | keyword "ffi" | compare |
| winapi Widely used | 1,251,224 | 4.61x | 1,603 | 6.3y | keyword "ffi" | compare |
| bindgen Widely used | 1,018,499 | 3.75x | 3,072 | 46d | keyword "ffi" | compare |
| libsqlite3-sys Established | 986,538 | 3.64x | 229 | 3mo | keyword "ffi" | compare |
| security-framework-sys Pulled in | 934,775 | 3.45x | 50 | 8mo | keyword "ffi" | compare |
| pyo3-build-config Established | 835,359 | 3.08x | 156 | 10d | keyword "ffi" | compare |
| ecdsa Established | 833,119 | 3.07x | 261 | 4mo | keyword "secp256k1" | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with secp256k1-sys; 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 secp256k1-sys: 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 secp256k1-sys, 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 24, 2026. Built when we find 3 or more.
Up next
The closest alternative: Foundational and steady. 4,964,021 real downloads a day.libcRust crate. Raw FFI bindings to platform libraries like libc. Real use: 5M downloads a day on quiet days; 17,338 crates depend on it.Read it next →Also worth your time