FormatDrop vs STL File Converter

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

FormatDrop compared with STL File Converter
Detail	FormatDrop	STL File Converter
What it does	Free browser-based file converter for images, audio, video, and documents	Free browser-based converter for 3D model files and image-to-STL
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: 2 files per day, 10 MB per file, watermark on images. Pro Monthly: $9.99/mo, unlimited files, 500 MB per file, no watermarks. Pro Yearly: $49/year (equivalent to $4.08/month), all Pro features billed annually.	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.
Key features	200+ format pairs supported 100% client-side processing, files never leave your device Batch conversion Up to 500 MB per file on Pro No watermarks on Pro and video/audio Support for images, video, audio, and documents Conversion speeds of 1-3 seconds typical for images Works offline after converter engine is cached Supports Chrome, Safari, Firefox, and Edge	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
What makes it different	Truly private: no server upload endpoint exists, files stay in browser memory only No signup or account required to use Runs real production conversion engines directly in browser with no latency Privacy by design, not just policy: server has no upload capability 14-day money-back guarantee on Pro with no questions asked	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
Community votes	0	0
DR (Domain Rating by Ahrefs)	13 −1 (down) since last check	1 no change since last check
Trust Flow (Majestic)	7	2
Citation Flow (Majestic)	23	19
Referring domains (Majestic)	29	7

5 details filled in for both companies.

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