STL File Converter vs UploadOff

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

STL File Converter compared with UploadOff
Detail	STL File Converter	UploadOff
What it does	Free browser-based converter for 3D model files and image-to-STL	Free file converters that run in your browser with no upload
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Free
Pricing	Free for image-to-STL conversion, 3D file format conversion, and preview. AI generation: Starter $6.90 (60 credits), Standard $14.90 (200 credits), Professional $29.90 (500 credits). One-time payment, no subscription. 20 credits per AI generation.	Not given
Key features	Convert PNG, JPG, WEBP to STL up to 10 MB Heightmap mode for photo reliefs Extrude mode for logos and silhouettes 3D preview before download Convert 3D files (STL, OBJ, GLB, glTF, 3MF) up to 50 MB Local file processing in browser Adjust depth and base settings Adjust output size AI image-to-3D generation with credits	Merge PDF files Split PDF Remove pages from PDF Rotate image Flip image SVG to PNG conversion Offline functionality
What makes it different	All free tools run locally in your browser with no uploads or signup needed No file size caps, watermarks or paywall after limited conversions Open-source 3D engine (three.js) powers conversions Credits never expire and are one-time payment only Built specifically for photo reliefs, logos and decorative plates	Files never uploaded—all processing happens on your device Works offline after first visit No limits on file size or quantity No sign-up required Installable as an app
Community votes	0	0
DR (Domain Rating by Ahrefs)	1 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	2	0
Citation Flow (Majestic)	19	0
Referring domains (Majestic)	7	0

4 details filled in for both companies.

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