Turn your Windows PC into a full AWS S3-compatible object storage server with Personal S3 Server. No MinIO, no Docker, no WSL, no cloud bills — a lightweight native C engine that runs directly on Windows and speaks the real S3 REST protocol. WHY PERSONAL S3 SERVER MinIO is a 100 MB+ Go binary, switched to the AGPL license, and requires Docker or WSL on Windows. Personal S3 Server is a tiny native C shared library with zero external dependencies that starts in under a second. Point the AWS CLI, boto3, rclone, Duplicati, or Cyberduck at localhost and it just works. KEY CAPABILITIES ★ AWS S3 REST API Compatible — ListAllMyBuckets, CreateBucket, DeleteBucket, ListObjectsV2, PutObject, GetObject, HeadObject, and DeleteObject all implemented over standard HTTP. ★ Real AWS SigV4 Authentication — sign requests the same way AWS does. Wrong keys are rejected with 403 AccessDenied, so your local buckets stay private. ★ One-Click Connection Snippets — copy ready-made AWS CLI, Python boto3, and Cyberduck/S3 browser configurations with the correct endpoint URL in a single tap. ★ Bucket & Object Explorer — browse every bucket and object in the app with sizes, ETags, and last-modified timestamps. Refresh live from the UI. ★ Upload & Share on Your Network — upload files with the built-in file picker, then flip one switch to serve other devices on your LAN. Access keys are generated for you and required whenever the server is shared. ★ Live Server Statistics — buckets, objects, storage used, requests served, and bytes in and out, updated while the server runs. ★ Zero Dependencies — pure C sockets, MD5, SHA-256/HMAC, and XML. No runtimes, no installers, no background services. PERFECT FOR • Developers mocking AWS S3 in local and CI test environments • Backup tools like Duplicati and rclone that need a local S3 target • Students and tinkerers learning S3 without a cloud account • Anyone who wants a local object store without Docker or WSL