Staxly

shadcn/ui vs Supabase

Beautifully designed React components you copy-paste into your app
vs. The open source Firebase alternative with Postgres

shadcn/ui (OSS)Supabase website

Pricing tiers

shadcn/ui

OSS (MIT)
$0. MIT license. Free forever. No signup. Components copy-pasted into your repo and owned by you.
$0 base (usage-based)
shadcn/ui (OSS)

Supabase

Free
Perfect for experiments. Projects pause after 7 days inactivity.
Free
Pro
Production-ready. Usage-based overages apply.
$25/mo
Team
For teams; includes SOC2 attestation and priority support.
$599/mo
Enterprise
Custom quotas, HIPAA compliance, dedicated support.
Custom
Supabase website

Free-tier quotas head-to-head

Comparing oss on shadcn/ui vs free on Supabase.

Metricshadcn/uiSupabase
bandwidth gb5 GB/month
db storage gb0.5 GB
edge invocations500000 invocations/month
file storage gb1 GB
mau50000 users/month
realtime messages2000000 messages/month

Features

shadcn/ui · 12 features

  • 50+ ComponentsButton, dialog, dropdown, form, table, etc.
  • AccessibilityWAI-ARIA compliant.
  • BlocksFull-page layouts ready to use.
  • ChartsComposable Recharts wrappers.
  • CSS VariablesThemeable via --primary, --background, etc.
  • Custom RegistriesPublish your own components via registry spec.
  • Dark ModeBuilt-in toggleable theme.
  • Form Components (react-hook-form)Integrated with react-hook-form + Zod.
  • MCP ServerQuery component catalog from AI agents.
  • Radix UI PrimitivesHeadless accessibility foundation.
  • shadcn CLIScaffold + add components.
  • Themes + Theme EditorCSS vars-based color system.

Supabase · 24 features

  • AuthenticationComplete JWT-based auth: passwords, magic links, OTP, OAuth, SSO, phone, MFA.
  • Backups & PITRAutomatic daily backups + Point-in-Time Recovery (WAL-G). 14-day default PITR wi
  • Compute InstancesUpgradeable DB compute: Micro, Small, Medium, Large. Affects CPU, RAM, and conne
  • Connection PoolingSupavisor pooler: Session mode (persistent) and Transaction mode (serverless). D
  • Cron JobsScheduled recurring jobs via pg_cron. Trigger DB functions, edge functions, or H
  • Custom DomainsConfigure custom hostname for API endpoints with SSL certificate management.
  • Database WebhooksAsync HTTP callbacks on INSERT/UPDATE/DELETE via pg_net extension.
  • Edge FunctionsTypeScript (Deno runtime) functions deployed globally at the edge. Supports secr
  • Full-Text SearchPostgreSQL native FTS: to_tsvector, to_tsquery, GIN indexes, fuzzy matching, wei
  • Image TransformationsOn-the-fly resize, crop, quality (20-100), WebP auto-format. Smart CDN caching.
  • Log DrainsRoute all stack logs to HTTP, Datadog, Loki, Sentry, S3, OTLP, or Axiom. Up to 2
  • Metrics API~200 Prometheus-compatible Postgres metrics. OpenTelemetry export to Datadog, Gr
  • Network RestrictionsCIDR allowlist for database access. Multiple IP ranges supported. Pro+ plan.
  • OAuth 2.1 ServerUse Supabase Auth as OAuth provider. Custom Access Token Hooks for claim injecti
  • pgvectorStore and search vector embeddings in Postgres. Supports HNSW/Flat indexes, cosi
  • PostgreSQL DatabaseFull PostgreSQL per project: SQL editor, table editor, CSV import, 50+ extension
  • PostgreSQL Extensions50+ pre-installed extensions: uuid-ossp, pgvector, pg_cron, plv8, pgtap, pg_net,
  • Preview BranchesEphemeral or persistent DB branches for isolated testing. Git integration, auto-
  • QueuesExactly-once message queues built on pgmq. Stored in Postgres with configurable
  • Read ReplicasAsync read-only replicas in multiple regions. Geo-routing, replication lag monit
  • RealtimeWebSocket subscriptions for DB changes (INSERT/UPDATE/DELETE), broadcast, and pr
  • Row Level SecuritySQL-native access control; policies auto-filter rows based on auth.uid() / auth.
  • SSL EnforcementRequire TLS for all DB connections. Configurable: required, preferred, disabled.
  • StorageFiles, Analytics (Iceberg), and Vector buckets with global CDN (285+ cities) and

Developer interfaces

Kindshadcn/uiSupabase
CLIshadcn CLISupabase CLI
SDKC# SDK, Flutter SDK, JavaScript SDK, Kotlin SDK, Python SDK, Swift SDK
RESTComponent RegistryManagement API, REST API (PostgREST)
GRAPHQLGraphQL (pg_graphql)
MCPshadcn MCP ServerSupabase MCP Server
OTHERDocs + Component Browser, Theme CustomizerRealtime (WebSocket)
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