Clerk
Full review86/100
Top Pick
Best for Drop-in auth with beautiful components.
Not ideal for You are deep in the Supabase or Firebase stack.
Auth
Clerk vs Supabase
Head-to-head with the fewertools Best Score formula (70% category fit + 30% Stack Score). Independent. No paid placements.
Clerk 86 · Supabase 89 · Supabase leads by 3
vs
Supabase
Full review89/100
Top Pick
Best for You want Postgres with batteries included.
Not ideal for You need a document database or heavy NoSQL.
My honest take
My honest take: I'd lean Supabase for most founders, but the gap is small enough that the second choice isn't wrong. Supabase edges it at 89 vs 86 mostly because of ease of use (Clerk scores 10/10 there). Clerk still wins if your specific situation calls for drop-in auth with beautiful components. Either way you'll be fine. The expensive mistake is overthinking the decision.
Clinton Feyisitan · founder, fewertools
Winner by category
Different jobs, different winners.
Best for price
Supabase
Best for beginners
Clerk
Best overall score
Supabase
The long answer
Why Supabase edges it.
Clerk is drop-in auth with beautiful components. Supabase is postgres + auth + storage + realtime. Both target overlapping but different jobs, and the question we get most often is which one to commit to. Here is the honest answer based on our scoring across functionality, pricing value, ease of use, reliability, and founder fit.
Supabase edges this matchup at 89 vs 86: a 3-point lead. Slight, but consistent across multiple criteria. That said, Clerk is not a bad choice. It loses on the aggregate score, but wins specific situations we'll outline below.
Where the gap shows up specifically: Ease of use: Clerk (10/10) a faster path from sign-up to first result than Supabase (8/10). These are the differences that actually change a buying decision once you have used both for a real project.
On the ownership side, Supabase is founder-led (lower stack risk). We weight ownership in Stack Score because it predicts pricing trajectory and continuity risk over 2-3 year horizons. Founder-led usually means slower price creep and more product continuity; PE-owned usually means the opposite.
Side-by-side
How they compare on every factor we score.
Best Score is the headline number (70% category fit + 30% Stack Score). The five criteria below feed Category Fit. Stack Score reflects editorial verdict, ownership stability, and pricing trajectory.
| Clerk | Supabase | Winner | |
|---|---|---|---|
| Best Score | 86/100 | 89/100 | Supabase |
| Category Fit | 89/100 | 87/100 | Clerk |
| Stack Score | 78/100 | 95/100 | Supabase |
| Verdict | Recommended | Our Pick | N/A |
| Pricing model | Freemium | Freemium | N/A |
| Ownership | Unknown | Founder | N/A |
| Category | Auth | Databases | N/A |
| Functionality | 9/10 | 9/10 | Tie |
| Pricing value | 8/10 | 9/10 | Supabase |
| Ease of use | 10/10 | 8/10 | Clerk |
| Reliability | 8/10 | 8/10 | Tie |
| Founder fit | 9/10 | 9/10 | Tie |
When each tool wins
Pick by situation, not by score alone.
Pick Clerk if...
- drop-in auth with beautiful components
- you need a faster path from sign-up to first result
- you need a document database or heavy nosql
Pick Supabase if...
- you want Postgres with batteries included
- you are deep in the supabase or firebase stack
FAQ
Clerk vs Supabase: the common questions.
Which is better for solo founders?
Both score similarly on founder fit. Pick based on which best-for line matches your current job.
Which is cheaper at the founder tier?
Clerk pricing model: Freemium. Supabase pricing model: Freemium. Supabase scores higher on pricing value overall (9/10 vs 8/10).
Is the ownership situation a risk for either tool?
Clerk has standard ownership signals. Supabase is also founder-led.
What's the migration cost if I'm already on the other one?
Migration cost depends on how deep you've integrated either tool into your stack. For a project that uses Clerk or Supabase as the primary surface (not just a small embedded feature), expect a half-day to a weekend of migration work plus a week of running both in parallel. Both tools support data export. Run a fresh audit on your current stack before deciding the switch is worth it: audit my stack with both options.
How is this scoring decided?
Best Score is 70% Category Fit (graded on functionality, pricing value, ease of use, reliability, founder fit, scored 0-10 each) plus 30% Stack Score (editorial verdict + ownership stability + pricing trajectory). Same formula on every tool, no paid placements. Read the full methodology.
Score anatomy
Why Clerk scored 86, and Supabase scored 89.
Best Score isn't pulled out of the air. Here's what lifted each tool and what pulled it down, criterion by criterion.
Clerk · 86/100
Strong because
- functionality (9/10)
- pricing value (8/10)
- ease of use (10/10)
- reliability (8/10)
- founder fit (9/10)
Supabase · 89/100
Strong because
- functionality (9/10)
- pricing value (9/10)
- ease of use (8/10)
- reliability (8/10)
- founder fit (9/10)
Real-world scenarios
Which one wins in your specific situation.
- You already use Clerk and it's working: don't migrate. The score gap (3 points) doesn't justify the disruption. Migration costs are real · half a day to a weekend of work plus a week running both in parallel.
Stack fit
How each fits inside a founder stack.
A tool you can't integrate is a tool you'll replace in six months. Here's how each plays with the rest.
Clerk
Clerk fits cleanly in a stack with Supabase, Stripe, Vercel, Resend. If your stack already includes most of those, Clerk integrates without friction.
Supabase
Supabase fits the same kind of stack. If your existing stack leans toward Supabase or Stripe or Vercel, Supabase doesn't create integration debt either.
Final recommendation
For most founders, Supabase. The gap is small enough that the other tool is still a respectable second choice if your situation calls for it. If you're already on Clerk and it's working, don't migrate. The cost of switching is real and the gain is small.
Bottom line
Supabase for most founders.
Supabase edges it. Slight lead at 89 vs 86. Best for you want postgres with batteries included. Go with Clerk if you specifically need drop-in auth with beautiful components.
Not sure either is right for your stack?
Paste the tools you already use. fewertools audits the whole stack: where there's overlap, where the weak links are, and which of these two (if either) actually belongs in your build.