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SwiftSend 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.

SwiftSend compared with STL File Converter
DetailSwiftSend logo SwiftSendSTL File Converter logo STL File Converter
What it doesSecure Large File Transfer Made Simple Free browser-based converter for 3D model files and image-to-STL
StageNot given Not given
FoundedNot given Not given
Based inPT Not given
Pricing modelFreemium Freemium
PricingFree plan: €0, 2 GB per transfer, 5 transfers per month, 10 GB storage, 7-day retention. Professional: €… per month, 100 GB per transfer, unlimited transfers, 250 GB storage, 30-day retention. Studio: €… per month, 250 GB per transfer, unlimited transfers, 1000 GB storage, 365-day retention. Pay ann 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
  • Stream files during upload - recipients download while sender uploads
  • Resumable uploads that continue from point of interruption
  • Preserve folder organization during transfer
  • Password protection for transferred files
  • Download tracking and access logs
  • Antivirus protection on all transfers
  • Multithreaded uploads for faster speeds
  • Set expiration dates and limit download count
  • Schedule email delivery for custom times
  • Works on smartphones, tablets, and desktops
  • 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
  • Streaming upload and download - recipients download while you're still uploading
  • Resumable uploads - no restarting from the beginning on connection failure
  • Folder organization preserved throughout entire transfer cycle
  • Up to 250 GB per transfer with Studio plan
  • No quality loss on video files - retains original resolution including 4K
  • 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 votes00
DR (Domain Rating by Ahrefs)13 −2 (down) since last check1 no change since last check
Trust Flow (Majestic)52
Citation Flow (Majestic)2719
Referring domains (Majestic)557

5 details filled in for both companies.

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