Online Image Compressors Compared: imgadd vs TinyPNG, Squoosh & More
Compare imgadd, TinyPNG, Squoosh, and upload-based compressors—local vs cloud, batch support, formats, and privacy for screenshots and web images.
Screenshots, product photos, and blog assets are often too large to share quickly. When picking a compressor, look beyond file size—where processing runs, batch support, and format coverage matter just as much.
Here is a practical comparison of imgadd and popular alternatives.
At a glance
| Capability | imgadd.com | TinyPNG | Squoosh | Upload-based sites |
|---|---|---|---|---|
| Processing | In-browser | Cloud upload | In-browser | Cloud upload |
| Batch | ✅ Multi + ZIP | ✅ (limits) | ❌ Mostly single | ✅ (often signup) |
| JPG / PNG / WebP | ✅ | ✅ PNG/JPG | ✅ Many | ✅ |
| HEIC / AVIF | ✅ | Partial | ✅ | Varies |
| Quality control | ✅ Slider | Fixed algo | ✅ Fine-grained | ✅ |
| Resize while compress | ✅ | ❌ | ✅ | Sometimes |
| Account / paywall | Free, no account | Free tier + paid | Free | Free tier + paid |
| Sensitive images | ⭐ Strong fit | Trust vendor | ⭐ Strong fit | Use with care |
Third-party features change over time; this reflects typical public offerings, not live specs.
Choose by scenario
1. Huge screenshot PNGs (Slack, docs, email)
OS screenshots are often multi‑MB PNGs. imgadd can convert to JPEG or WebP locally, tune quality, and ZIP-download a batch.
Squoosh excels at single-image codec experiments; for batch screenshots, imgadd is usually faster.
2. Store listings & blog heroes
When you need consistent quality across many files, imgadd applies one setting to a whole batch with preview before download.
TinyPNG is well regarded for compression ratios, but files go to their servers—skip that if assets are confidential.
3. iPhone HEIC → JPG then compress
imgadd decodes HEIC in-browser, then compresses to JPG/PNG/WebP without upload.
Many converter sites work too; for privacy and predictable speed, local WASM is hard to beat.
What sets imgadd apart
- Local processing via Worker + WASM—files stay on your device (privacy policy).
- Batch queue for screenshot folders and product catalogs.
- Same site for resize and format convert next steps.
When to use something else
- Squoosh — codec side‑by‑side experiments and tuning.
- TinyPNG / API — existing CDN pipelines and team integrations.
- Photoshop — layered, non‑destructive editing workflows.
Summary
| Priority | Lean toward |
|---|---|
| Privacy / no upload | imgadd, Squoosh |
| Batch + one-stop | imgadd |
| Single-file experiments | Squoosh |
| Cloud API | TinyPNG-class services |
Try imgadd compress—drop JPG, PNG, WebP, or HEIC to start.