Uppy

Open-source file upload widget for the browser, with drag-and-drop, resumable uploads (tus) and direct-to-S3 uploads, maintained by Transloadit.

Visit uppy.io ↗Alternatives

Works with AI agents:llms.txt

Ask your AI about this, with this page as the source:ChatGPT ↗Claude ↗Perplexity ↗

Where it fits

File Storage · Upload libraryAn open-source upload widget with drag-and-drop, progress, resumable uploads and direct-to-S3, in front of whatever bucket you choose.Trade-off: You still set up presigned URLs or a companion server, and the bucket rules, yourself.

How Uppy itself is built

1 tools, from its own code, website and Product Hunt page.

Plausible Analytics

Who uses it

2 makers' products, each linked to the source that shows it, and 12 open-source projects that declare it in their code.

The maker says so 2Declared in code 12How evidence is collected →

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Mnemosphere AIChatGPT for High-performers

“Strongly recommend for anyone building a file uploader solution. Comes with a lot of cool features and easy to get off the ground”

File StorageMaker says so · source ↗

DaminikOpen Source Digital Asset Management for the rest of us

“Powering all our file uploading features, very easy to integrate.”

File StorageMaker says so · source ↗

Postiz Social media scheduling and analytics tool for planning, AI-assisted drafting, and auto-…File StorageIn its code · source ↗

BlockNote Block-based React rich text editor for building Notion-style editing experiences, built…File StorageIn its code · source ↗

cedar The React + GraphQL Web App FrameworkFile StorageIn its code · source ↗

Cypress JavaScript end-to-end and component testing framework for web apps, run in a real browser.File StorageIn its code · source ↗

Appsmith Open-source low-code platform for building admin panels, dashboards and internal tools o…File StorageIn its code · source ↗

Zulip Open-source team chat that organizes every conversation into topics within channels, bui…File StorageIn its code · source ↗

MaiBot MaiSaka, an LLM-based intelligent agent, is a digital lifeform devoted to understanding…File StorageIn its code · source ↗

ClassQuiz ClassQuiz is a quiz-application like Kahoot!, but open-source.File StorageIn its code · source ↗

ondemand Supercomputing. Seamlessly. Open, Interactive HPC Via the WebFile StorageIn its code · source ↗

leantime Leantime is a goals focused project management system for non-project managers. Building…File StorageIn its code · source ↗

craftercms CrafterCMS primariy repository.File StorageIn its code · source ↗

discourse A platform for community discussion. Free, open, simple.File StorageIn its code · source ↗

Open source: a project that declares Uppy as a dependency in its public code — verifiable, but not necessarily a live product.

What makers say

2 makers on why they use Uppy, in their own words on Product Hunt.

Strongly recommend for anyone building a file uploader solution. Comes with a lot of cool features and easy to get off the ground

Mnemosphere AI Sep 2026 ↗

Powering all our file uploading features, very easy to integrate.

Daminik Sep 2026 ↗

Alternatives to Uppy

All alternatives by situation →

Amazon S3Apps already on AWS, or ones that need lifecycle rules, storage tiers and event triggers.

Cloudflare R2Files that get downloaded often — the S3 API without egress fees.Free tier4 makers · file storage

UploadThingTypeScript apps that want typed upload endpoints and drop-in upload components instead of wiring presigned URLs.Free tier

Vercel BlobNext.js apps hosted on Vercel that need simple uploads with no extra account.Free tier

SupabaseApps already on Supabase — storage access follows the same row-level security policies as your data.Open sourceFree tier3 makers · file storage

MinIOThe long-standing S3-compatible server for self-hosting, with many existing guides, Docker setups and client SDKs.Open sourceFree tier1 makers · file storage

SeaweedFSRunning your own S3-compatible storage for lots of files, from one server up to a cluster.Open sourceFree tier

GarageA small, single-binary S3-compatible store for a few self-hosted machines, even in different locations.Open sourceFree tier

Questions makers ask about Uppy

Is Uppy free?

Yes — it is free, open-source software.

Is Uppy open source or self-hostable?

Open source, and you can self-host it. source ↗

Can AI coding agents work with Uppy?

It serves an llms.txt docs index.

Who uses Uppy?

2 makers' products we track, each with a source, and 12 open-source projects declare it in their code. source ↗