Lightweight, S3-compatible object storage server
VaultS3 is a lightweight, self-hosted, S3-compatible object storage server delivered as a single static binary or container (<80MB idle RAM) with a built-in dashboard, erasure coding, clustering, encryption, and semantic/vector search.
Lightweight, S3-compatible object storage server is other software teams evaluate for other. Use this page to review pricing, integration signals, and the best alternatives before you commit.
Profile facts come from the vendor source. AiMatch labels unknown pricing or API details instead of estimating them.
Review official source →Used in These Packs
Quick Overview
Best for: Other
What it does
Other software for decision-makers comparing workflow fit and alternatives.
Best fit
Other
Pricing snapshot
Free from AGPL-3.0 — free to self-host
Next step
Compare Lightweight, S3-compatible object storage server with similar tools before you shortlist it.
Compare this tool before you shortlist it
Review alternatives, pricing posture, and workflow fit side by side.
VaultS3 is a self-hosted, S3-compatible object store designed to be lightweight and easy to run: a single binary or container that uses under 80 MB of idle RAM. It provides a full S3 API implementation (SigV4, multipart uploads, versioning, presigned URLs, object tagging, lifecycle, CORS, bucket policies) and is a drop-in for AWS SDKs, aws-cli, rclone, and boto3. The project includes a built-in web dashboard and production-oriented features such as erasure coding, Raft-based clustering, encryption (including per-bucket keys and SSE-C), tiering and backup, and built-in semantic/vector search for RAG workflows.
Self-hosted, S3-compatible object storage in a single binary under 80MB RAM. Built-in dashboard, erasure coding, Raft clustering, active-active replication, per-bucket encryption, and semantic / vector (RAG) search. The maintained, lightweight alternative to MinIO.
Own this listing?
Claim this page for a one-time $29 to add pricing, features, screenshots, verified owner details, and a clearly labeled 30-day category position after the profile is live.
Claim this listing for $29Key Features
Single binary, zero dependencies
Everything ships in one static binary (or small container) with no add-ons; advertised idle RAM under 80 MB.
S3 API compatibility
Supports S3-compatible API including SigV4 auth, multipart uploads, versioning, presigned URLs, object tagging, lifecycle, CORS, and bucket policies; drop-in for AWS SDKs, aws-cli, rclone, and boto3.
Built-in web dashboard
Management UI with file browser, bucket configuration, IAM, audit trail, metrics, search, and replication status — no separate licensed console required.
Server-side encryption
Server-side AES-256-GCM, per-bucket keys with rotation and crypto-shredding for tenant isolation, and SSE-C for operator-blind objects.
Erasure coding with healing
Reed–Solomon sharding across disks with a background healer that auto-reconstructs degraded objects to survive drive loss.
Raft clustering
Strongly-consistent metadata via HashiCorp Raft, consistent-hash placement ring, failure detection, and automatic failover.
Active-active replication (beta)
Bidirectional replication using vector clocks and pluggable conflict resolution, plus one-way async site-to-site push.
Semantic / vector search
Built-in vector search and RAG retrieval by embedding text via any OpenAI-compatible endpoint; no separate vector DB required.
Tiering & backup
Transparent hot/cold tiering to local or remote storage and scheduled full/incremental backups.
Multiple deployment options
Run as a static binary, container, Helm chart, Kubernetes operator, or FUSE mount; supports amd64 and arm64.
Pricing
AGPL-3.0 open source project; self-hosted and free to use under the license.
Open Source
AGPL-3.0 — free to self-host- Single binary container/Helm/operator deployments
- Built-in dashboard, encryption, erasure coding, clustering, replication, and vector search
Use Cases
Self-hosted S3-compatible object storage
Run a lightweight, fully-featured object store on-premises or in cloud VMs/containers as a drop-in alternative to AWS S3 or heavier self-hosted solutions.
Multi-tenant, encrypted storage
Provide per-bucket encryption with rotation and crypto-shredding and SSE-C for operator-blind objects to isolate tenant data.
Highly-available storage with fault tolerance
Use Reed–Solomon erasure coding and Raft metadata clustering to survive drive loss and ensure consistent metadata with automatic failover.
Cross-site replication and disaster recovery
Use active-active or one-way async replication and scheduled backups for multi-site replication and recovery workflows.
RAG/semantic retrieval
Embed and query text objects with built-in vector search (OpenAI-compatible embedding endpoints) for retrieval-augmented generation workflows without a separate vector DB.
Developer workflows and tool compatibility
Integrates with AWS SDKs, aws-cli, rclone, and boto3 for CI/CD, backup, and migration workflows.
Integrations
AWS SDKs / aws-cli / boto3
S3-compatible API allows drop-in usage with AWS SDKs and aws-cli tooling.
rclone
Compatible with rclone for data transfer and synchronization workflows.
OpenAI-compatible embedding endpoints
Use any OpenAI-compatible endpoint to embed text objects for the built-in vector search/RAG functionality.
Benefits
Limitations
Frequently Asked Questions
No verified FAQs are available.
Getting Started
- 1 Download the binary or container image from the project page or GitHub.
- 2 Run a container example: docker run -p 9000:9000 eniz1806/vaults3
- 3 Open the built-in web dashboard and consult the documentation (Read the docs) for configuration, IAM, and storage setup.
Support
docs
Documentation linked from the site (Read the docs).
source
Project source and releases on GitHub (link from the site).
container
Docker Hub image available for quick start (link from the site).
contact
Contact link provided on the project website.
API
Read the docs linked from the project site (S3-compatible API documentation available on the site).
Compare Lightweight, S3-compatible object storage server with similar tools
See how it stacks up against alternatives
Related Tools
View all 40 →
RepoInPeace
Repo In Peace is a digital salvage marketplace for buying and selling assets from defunct tech startups — source code, trained models, UI kits, scraped datasets, aged domains and customers — sold as-is under a full APA with NDA-gated inspection.
Superscout
SuperScout is a private, searchable locations database and sharing platform built for film offices, location scouts, production companies and location owners to upload, organise, search and share filming locations with control and privacy.
Domainfinderai
Domain Finder AI is an AI-powered domain discovery platform that generates unique, SEO-optimized domain name suggestions, checks availability, and links users to registrars. It targets entrepreneurs, startups, developers, and businesses with free and paid plans.
SkyLoad iQ
SkyLoad iQ is an AI-driven air cargo load planning and ULD build-up solution that provides visualized 3D loading plans, optimization of cargo space and weight distribution, and integration options for enterprise systems to improve revenue and operational efficiency.
nebius
Nebius is an enterprise AI cloud platform that provides end-to-end infrastructure and tooling for training, inference, simulation and physical AI — offering custom hardware (non-virtualized GPUs & InfiniBand), built-in MLOps, serverless and managed inference, and expert support for production AI workloads.
mavenly
Mavenly is an AI-native grant management platform that helps mission-driven organizations discover funding opportunities, draft funder-specific proposals, manage pipelines and deadlines, and automate compliance reporting — offered in separate editions for grantseekers and grantmakers.
