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Grayscale Image vs jpg.now API

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

Grayscale Image compared with jpg.now API
DetailGrayscale Image logo Grayscale Imagejpg.now API logo jpg.now API
What it doesFree online converter to turn photos to grayscale with multiple methods, brightness and contrast controls, and browser-based processing REST API for image conversion, compression, and transformation
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Paid
PricingNot given API credits: 1,000 credits for $12.00 one-off or $8.40/month subscription ($0.0084 per credit); 5,000 credits for $60.00 one-off or $42.00/month ($0.0084 per credit); 25,000 credits for $300.00 one-off or $210.00/month ($0.0084 per credit); 100,000 credits for $1200.00 one-off or $840.00/month ($0.0
Key features
  • Four grayscale conversion methods: Weighted, Average, Maximum, Minimum
  • Adjustable brightness and contrast controls from -100 to +100
  • Real-time preview of adjustments
  • Support for JPG, PNG, and WebP formats
  • Browser-based processing with no server upload
  • Download as PNG to preserve transparency
  • No watermarks or signup required
  • Weighted method uses ITU-R BT.709 industry standard luminance
  • Multiple related tools: Monochrome, Desaturate, Sepia, Vintage, and effects
  • POST /api/v1/convert endpoint to submit files for conversion
  • GET /api/v1/jobs/{job_id} to poll job status
  • GET /download/{job_id} to download converted files
  • Supports over 100 image formats including JPG, PNG, WebP, PDF, HEIC, AVIF, GIF, TIFF, ICO, SVG
  • Asynchronous processing for large files
  • API key authentication via X-Api-Key header
What makes it different
  • Four different grayscale algorithms to choose the right output for your photo
  • Privacy-first approach with all processing in browser and no image uploads
  • Practical focus on specific workflows rather than generic one-click effects
  • Educational guides explaining technical concepts and when to use each method
  • Instant results without upload or download wait times
  • No SDK installation required, just REST endpoints and an API key
  • Most conversions finish in under a second
  • Over 100 supported formats including RAW camera files, PDFs, and vectors
  • Premium and Premium Plus subscribers get unlimited API access at no credit cost
  • No overage charges; over-quota requests refused instead of billed
Community votes00
DR (Domain Rating by Ahrefs)43 no change since last check71 no change since last check
Trust Flow (Majestic)1023
Citation Flow (Majestic)3340
Referring domains (Majestic)109235

4 details filled in for both companies.

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