Best UploadThing Alternatives (2026)

UploadThing is a free storage tool (file upload). Type-safe file upload library for Next.js Astro and SvelteKit with built-in CDN. We found 12 alternatives worth considering.

Quick verdict

Most similar: Supabase Storage
Best free option: Supabase Storage

Why look for UploadThing alternatives?

Feature gaps — while UploadThing is free, paid alternatives may offer more polish or support.
Workflow fit — every team is different; the best tool depends on your stack and preferences.

Top 12 Alternatives to UploadThing

Supabase Storagefree

S3-compatible object storage with RLS policies image transforms and CDN delivery

Both in StorageShared: storage

Compare side-by-side Visit site

Cloudflare R2free

S3-compatible object storage with zero egress fees and global distribution

Both in StorageShared: storage

Compare side-by-side Visit site

Industry-standard object storage with 99.999999999% durability and lifecycle policies

Both in StorageShared: storage

Compare side-by-side Visit site

Vercel Blobfree

Serverless file storage integrated into Vercel platform with simple SDK

Both in StorageShared: storage

Compare side-by-side Visit site

Backblaze B2free

Low-cost S3-compatible storage with free egress via Cloudflare bandwidth alliance

Both in StorageShared: storage

Compare side-by-side Visit site

ValidatorAIfree

AI startup idea validator used by 200K+ people

Compare side-by-side Visit site

AI market analysis in ~120 seconds for entrepreneurs

Compare side-by-side Visit site

Drop-in authentication with pre-built UI components optimized for React and Next.js

Compare side-by-side Visit site

Supabase Authfree

PostgreSQL-native auth with row-level security and social/email/phone login

Compare side-by-side Visit site

Firebase Authfree

Google auth service with email phone social and anonymous sign-in methods

Compare side-by-side Visit site

All-in-one auth with built-in orgs RBAC feature flags and billing hooks for SaaS

Compare side-by-side Visit site

Enterprise-grade auth with SSO SCIM MFA and AuthKit UI components

Compare side-by-side Visit site

Alternatives by type

Object Storage alternatives

Supabase Storage

Web-Based alternatives

Auth Provider alternatives

Frequently asked questions

What are the best alternatives to UploadThing?: The top alternatives to UploadThing include Supabase Storage, Cloudflare R2, AWS S3. All are storage tools that support file upload workflows.
Is there a free alternative to UploadThing?: Yes. Supabase Storage is available for free. S3-compatible object storage with RLS policies image transforms and CDN delivery
Is Supabase Storage better than UploadThing?: Supabase Storage and UploadThing serve similar purposes as storage tools. Supabase Storage: S3-compatible object storage with RLS policies image transforms and CDN delivery UploadThing: Type-safe file upload library for Next.js Astro and SvelteKit with built-in CDN The best choice depends on your workflow and requirements.
How many alternatives to UploadThing are there?: We track 12 alternatives to UploadThing across categories including Storage, Idea Validation, Auth.

Related alternatives pages

Alternatives to Supabase Storage Alternatives to Cloudflare R2 Alternatives to AWS S3 Alternatives to Vercel Blob Alternatives to Backblaze B2

Not sure which to pick?

Describe what you want to build and get a recommended tool stack.

Generate build plan