STLFinder Shows Your Models to Millions.
You Earn $0.
STLFinder has indexed millions of 3D models — and sent creators $0 in earnings. Proofly is a marketplace where you set the price, get paid via Stripe, and keep 100% of every sale.
Your model has 50,000 views on STLFinder → $0 earned
STLFinder is a search engine that crawls 3D model files from Thingiverse, MyMiniFactory, Printables, and other sites. It drives traffic to those platforms — not to your wallet. Even with hundreds of thousands of views, creators earn nothing directly from STLFinder.
50,000+
STLFinder views
on a popular model
$0
Creator earnings
from STLFinder
$2/download
Creator earnings on Proofly
you set the price
STLFinder vs Proofly — Side by Side
| Feature | STLFinder | Proofly |
|---|---|---|
| Creator can set a price | ||
| Payments to creators | ||
| Creator identity / profile | ||
| In-browser 3D viewer | ||
| Piracy protection (watermark) | ||
| Creator analytics dashboard | ||
| Commission taken from creators | N/A | |
| Model search & discovery |
Creator identity vs. anonymous aggregation
On STLFinder, your models are just files in a database — no profile, no brand, no way for fans to find more of your work. Proofly gives every creator a permanent identity.
Creator profile
Dedicated /profile/[username] page with all your models, stats, and Founding Creator badge.
HiddenMark watermark
Every download gets a unique forensic watermark embedded in the mesh — piracy-traceable.
0% commission
Set your price, get paid. Proofly takes nothing from creators — only buyers pay a ~$1 flat fee.
20 languages
Your listing is automatically shown in the buyer's language — reach a global audience.
What 10,000 downloads could look like
Based on a $2 model price. STLFinder and similar aggregators: $0.
STLFinder (aggregator)
$0
Traffic without monetization
Proofly (marketplace)
$20,000
10,000 × $2 at 0% commission
Ready to monetize your reach?
Free to list. No subscription. No commission. First 100 creators get Founding Creator status permanently.
Upload your first modelHow to sell STL files online and actually get paid
The 3D printing community shares models generously — but "free" is not a business model. If you spend 10–40 hours designing a detailed miniature, a terrain pack, or an engineering part, you deserve to monetize those hours. Here is the most direct path to selling STL files online in 2026.
1. Upload directly — no indexing lag
STLFinder indexes models from other sites on a delay. On Proofly you upload directly and your listing is live in seconds with full metadata, tags, and 3D preview.
2. Set your own price
STLFinder has no price field — it is an aggregator, not a store. Proofly gives you a price field in every major currency (PLN, USD, EUR) and Stripe Connect handles the payout directly to your bank account within ~7 days of each sale.
3. Let buyers inspect before buying
Every Proofly listing has an in-browser WebGL 3D viewer. Buyers rotate, zoom, and inspect the mesh geometry — topology, wall thickness, scale — before they pay. This dramatically reduces refund requests and increases trust for higher-priced packs.
4. Protect your files with HiddenMark
Every paid download on Proofly is automatically HiddenMark watermarked — a unique steganographic code embedded in the mesh geometry per buyer. If your file surfaces on a piracy forum or Discord server, upload it to proofly.store/hiddenmark and you get the exact buyer ID in about 2 seconds. STLFinder has no equivalent protection.
5. Keep 100% of your price
Proofly charges 0% from creators. The platform fee is paid by the buyer as a flat ~$1 service charge per order. Your listed price goes entirely to you.
Why monetizing 3D models beats free sharing
Free model sharing platforms like Thingiverse, Printables, or STLFinder aggregators drive traffic — but that traffic has no path back to you. Monetizing your 3D models gives you three things free sharing never does: income, buyer data, and piracy traceability.
Sustainable income
A $3 model with 500 downloads per month = $1,500/month. Free sharing gives you community points. Paid selling gives you rent money.
Buyer identity
With free sharing, you know nothing about who downloaded your file. On Proofly, every purchase has a buyer account, email, and HiddenMark fingerprint tied to the specific file.
Piracy traceability
Free files have no piracy — they are already free. Paid files need protection. HiddenMark gives you forensic-level per-buyer traceability that no aggregator can offer.
Frequently Asked Questions
Can I sell models on STLFinder?
No. STLFinder is a search aggregator — it indexes 3D model files from Thingiverse, MyMiniFactory, Printables, and similar sites. There is no payment system. Creators earn $0 directly from STLFinder regardless of traffic or download count.
What is a good STLFinder alternative for selling 3D models?
Proofly is built for exactly this. You get a branded storefront, in-browser 3D viewer, HiddenMark watermarking per buyer, and you keep 100% of the price you set. Buyers pay a flat ~$1 service fee. No percentage is taken from creators.
How does Proofly differ from STLFinder?
STLFinder aggregates models from other sites with zero monetization for creators. Proofly is a direct marketplace: you upload, set prices, and get paid via Stripe Connect. Proofly also provides per-buyer watermarking and a full creator profile page.
Does Proofly charge commission?
Proofly charges 0% commission from creators. Buyers pay a flat $1 (≈4 PLN) service fee per order — that's how Proofly covers costs. Your listed price goes directly to you.
Does Proofly charge creators a monthly fee?
No. Creators pay nothing — no subscription, no monthly fee, no setup cost. Buyers pay a flat $1 (≈4 zł) service fee per order. That is Proofly's only revenue from sales.