Skip to main content

STL File Converter vs html.now

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 html.now
DetailSTL File Converter logo STL File Converterhtml.now logo html.now
What it doesFree browser-based converter for 3D model files and image-to-STL REST API for programmatic HTML document and image conversion
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree 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. Free tier (10 conversions/day, 10 MB files), Free Account (20 conversions/day, 50 MB files), Premium (€9.99/mo or €95.99/year: unlimited conversions, 200 MB files, REST API 60 req/min), Premium Plus (€29.99/mo or €287.99/year: 1 GB files, 500 req/min API). API credits: 1,000 credits $12.00 one-off o
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
  • Asynchronous conversion with submit, poll, download workflow
  • API key authentication with rate limits and monthly quotas
  • Credit-based pricing with no overage charges
  • Support for multiple file formats including PDF, images, and spreadsheets
  • Usage tracking endpoint to monitor allowance and consumption
  • No SDK required, simple HTTP requests with any client
  • Batch processing and file management
  • Webhooks and batch API on Premium Plus
  • White-label option to remove branding from outputs
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
  • No installation or configuration required beyond an API key
  • No overage charges or surprise bills for quota overages
  • Fast conversions completing in under a second for most formats
  • Premium users get unlimited API access with no credit cost
  • One-time purchase credits never expire versus subscription options
Community votes00
DR (Domain Rating by Ahrefs)1 no change since last check21 no change since last check
Trust Flow (Majestic)211
Citation Flow (Majestic)1910
Referring domains (Majestic)74

5 details filled in for both companies.

More alternatives to STL File Converter More alternatives to html.now

Help centre