
Squoosh
TinyPNG
iLoveIMG
ImageOptim
Compressor.io
XnConvert
Batch Image Resizer
Compress your pictures up to 90% without visible quality loss.

iLovePDF
SmallPDF Free
Sejda
Adobe Acrobat DC
NullKit.app
PDF24 PDF Creator
PDFDocsMerge
Free private PDF and image tools that run entirely in your browser. Files leave no trace.
Which is more popular?
Based on our record, Caesium Image Compressor seems to be more popular. It has been mentioned 10 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | saerasoft.com | ghostdocs.org |
| Pricing | ||
| Platforms | — | |
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Caesium Image Compressor yet.
GhostDocs is a free, privacy-first utility suite for working with PDFs and images without ever uploading documents to a remote cloud server. While traditional online converters upload confidential documents to external servers where they can be retained or inspected, GhostDocs processes...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of GhostDocs yet.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Caesium Image Compressor and GhostDocs.
GhostDocs's answer:
GhostDocs operates on a 100% zero-upload architecture. While conventional document tools upload files to remote servers, GhostDocs executes all PDF splitting, merging, redaction, and image conversions locally inside your browser using HTML5 Canvas and WebAssembly. You can disconnect your internet, turn on Airplane Mode, and every tool still works.
GhostDocs's answer:
Complete privacy, no paywalls, and no file limits. Competitors like iLovePDF and Smallpdf upload your files to their servers and restrict usage behind daily limits or paid subscriptions. GhostDocs processes documents directly in your device's RAM with no file size limits, no watermarks, and zero account sign-up required.
GhostDocs's answer:
Privacy-conscious professionals, remote workers, legal and financial consultants, journalists, and everyday web users who need to handle sensitive documents (such as tax filings, bank statements, contracts, and ID scans) without risking cloud leaks.
GhostDocs's answer:
GhostDocs's answer:
We created GhostDocs after realizing that simple everyday tasks—like blacking out an account number or combining two pages—forced users to upload confidential documents to anonymous cloud servers. We engineered a suite of zero-upload browser tools to prove that modern web apps can deliver fast, professional utility without sacrificing user privacy.
GhostDocs's answer:
React, TypeScript, Vite, WebAssembly, HTML5 Canvas API, pdf-lib, pdfjs-dist, and binary EXIF parsers.
Share your experience with using Caesium Image Compressor and GhostDocs. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I also use Caesium Image Compressor on my ROMs and Themes folder to reduce their size and improve the RG35XX's responsiveness. Source: over 3 years ago
If you want further compression you could check out Caesium Image Compressor which is free (and I'm not affiliated with it incidentally, I just like it). Source: over 3 years ago
Try an image compression tool, this one is free and open source: https://saerasoft.com/caesium/. Source: over 3 years ago
Tracking GhostDocs since Nov 2026.
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iLoveIMG is one of most powerful solution that comes with all the major tool you cloud want to edit images in bulk.
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Split, merge and other powerful PDF tools.
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