Compare
BlockPoster.ai vs Thumbor
Smart imaging service for resizing/cropping via API, not a user-facing poster maker
Which to pick
Pick BlockPoster.ai if you want…
- Split images into printable wall-sized posters
- Integrations with JPG, PNG or modern browsers (on BlockPoster.ai's list, not Thumbor's)
Pick Thumbor if you want…
- Smart on-the-fly image cropping and optimization
- Server-side image manipulation
- A free, open-source tool
- Integrations with OpenCV (on Thumbor's list, not BlockPoster.ai's)
Side by side
- What it is
- BlockPoster.ai:BlockPoster.ai splits images into printable block posters and provides free basic or paid HD PDF downloads.
- Thumbor:Thumbor is an open-source imaging service that crops, resizes, flips and optimizes images on demand.
- Best for
- BlockPoster.ai:Split images into printable wall-sized posters
- Thumbor:Smart on-the-fly image cropping and optimization
- Who it’s for
- BlockPoster.ai:DIY makers, educators, home decorators who want large wall art from ordinary paper.
- Thumbor:Developers and ops teams needing dynamic image processing and storage flexibility.
- Pricing
- BlockPoster.ai:Freemium
- Thumbor:Open source
- Plans
- BlockPoster.ai:Free block poster PDFs $0
- Thumbor:—
- Open source
- BlockPoster.ai:—
- Thumbor:Yes, 10,522 GitHub stars
- Works with
- BlockPoster.ai:JPG, PNG, WebP, modern browsers
- Thumbor:OpenCV, WebP
BlockPoster.ai features
- Local processing. Images are decoded, cropped and split in the browser, keeping files private.
- Free basic PDF. Export a single-image PDF up to 5 sheets with a watermark and 150 DPI.
- HD, watermark-free PDFs. Paid downloads support up to 10 sheets, 300 DPI and no watermark.
- AI art generation. Generate artwork from prompts directly in the workspace (credits required).
- Multiple paper sizes. Choose A4, US Letter, A3, Legal or Tabloid in portrait or landscape.
- Assembly guides. Overlap lines, trim marks and page numbers help align and tape sheets.
Thumbor features
- Smart face & feature detection. Detects faces and key points to automatically crop images around important areas.
- On-demand resizing & flipping. Resize, crop, and flip images at request time without pre-processing.
- Extensible loaders & storages. Supports file, HTTP, Redis and Mongo loaders/storage and allows custom implementations.
- Image filters. Apply chainable filters such as brightness, contrast, grayscale, red-eye removal and blur.
- WebP & size reduction. Serves WebP to supported browsers and applies additional tactics to shrink file size.
- OpenCV off-loading. Can delegate heavy OpenCV processing to a separate farm for scalability.
BlockPoster.ai vs Thumbor FAQ
Is BlockPoster.ai or Thumbor free?+
BlockPoster.ai has a free plan (Free block poster PDFs) and paid plans. Thumbor is free and open source.
Is BlockPoster.ai or Thumbor open source?+
Thumbor is open source (thumbor/thumbor on GitHub, MIT license). DevHunt has no public source repository on record for BlockPoster.ai.
Do BlockPoster.ai and Thumbor integrate with the same tools?+
Partly. Both list WebP. BlockPoster.ai also lists JPG, PNG and modern browsers; Thumbor also lists OpenCV.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.