Lightweight C++23 S3 client with no extra deps (just curl and OpenSSL)
Attached is my attempt at making a small toy S3 client without any other dependency besides libcurl and OpenSSL. Was tested mainly on MinIO (RIP) locally, so I would expect some bugs when using it against AWS, although I was able to play with it on some open access buckets Be aware that I am not a C++ programmer and this project was indeed done to learn a bit of C++ myself :') Feedback on any of the code, either on gtest, or the benchmarking section or the core itself is welcome!
Lightweight C++23 S3 client with no extra deps (just curl and OpenSSL) launched on June 13, 2026 with 5 votes, #2,466 of 22,647 launches that month and more than 75% of that year's launches.
What it does
Lightweight C++23 client library for S3 inspired by the AWS Go SDK - ggcr/s3cpp
For a performance comparison against other AWS SDKs on a small set of sequential tasks, see benchmark/README.md # include < s3cpp/s3.h > int main () { s3cpp::S3Client client ( " access_key " , " secret_key " ); auto result = client. CreateBucket ( " my-bucket " , { . LocationConstraint = " us-east-1 " }); if (!result) { std::println ( " Error: {} " , result. error (). Message ); return 1 ; } return 0 ; } List all buckets: # include < s3cpp/s3.h > int main () { s3cpp::S3Client client ( " access_key " , " secret_key " ); auto result = client. ListBuckets (); if (!result) { std::println ( " Error: {} " , result. error (). Message ); return 1 ; } for ( const auto & bucket : result-> Buckets ) {…from github.com
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