See your options side by side
Choose one task and 2–4 tools. Compare pricing, output, test results and trust.
Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | Aiseesoft | aconvert.com | Switch / compare |
|---|---|---|---|
| Background removal | 84/100 2048 × 2048 · PNG | Not tested in topic | Compare in task topic → |
| Image compression | 87/100 2048 × 2048 · PNG | 86/100 2048 × 2048 · PNG | Active task |
| Image upscaling | 83/100 1024 × 1024 · PNG | Not tested in topic | Compare in task topic → |
| Object removal | 72/100 2048 × 2048 · PNG | Not tested in topic | Compare in task topic → |
Select at least 2 tools to compare
You can also filter a task page first, then compare your shortlist.
Browse this task →| Criterion | Aiseesoft Free Image Compressor Online Image compression 87/100 Seven-aspect task score No-login 2048×2048 watermark-free PNG export for files under 5 MB with 40-image batching and a 78.39% size reduction, though processing takes 11.68s. Tested export 2048 × 2048 · PNG Historical test · 2026-10-23 | Aconvert Image compression 86/100 Seven-aspect task score 100% free with no login, reducing the 4.14 MB anchor by 56.5% to 1.80 MB at PSNR 36.1 dB with full-resolution unwatermarked output. Tested export 2048 × 2048 · PNG Historical test · 2026-11-01 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | This web background remover; excludes desktop software and stock subscriptions · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free web tool2026-10-20 ↗ Free Free Free Officially described as fully free; no paid tier listed No published count or maximum output size; this does not establish unlimited HD 1 plan / billing-period records, all listed; — means that period is not recorded. No published count or maximum output size; this does not establish unlimited HD Cancellation, sources & verification recordCancellation and refund terms follow official checkout and help policies. Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ | Aconvert 100% free file conversion and compression service · 2026-11-01 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-11-01 ↗ Free Free Free 100% free without login, 40MB per file, up to 10 files per batch Full access to multi-format conversion and compression across documents, media, eBooks, and archives；40MB per-file limit, 10 files per batch, display ads present；Permanently free, no renewal；Perpetual access 1 plan / billing-period records, all listed; — means that period is not recorded. All conversion and compression features are 100% free with ad and voluntary donation support; 40MB per-file limit (up to 10 files per batch) with zero paid plans or paywalls. Cancellation, sources & verification recordCancellation and refund terms unverified Aconvert Official Homepage ↗ · 2026-11-01 Capture 1 ↗ Aconvert About and Free Model ↗ · 2026-11-01 Capture 1 ↗ |
| Free & trial allowance on the test date | Free batch compression up to 40 images at a time, max 5 MB per image | Completely free, 40MB per file limit, up to 10 files per batch |
| Cancellation & refunds | Cancellation and refund terms follow official checkout and help policies. | Not verified |
| Disclosure of costs & limits | Clearly discloses "Up to 40 images, max 5MB each" inside the upload box before upload | Compression parameters and instructions clearly disclosed on page |
| Task quality | ||
| Measured fixture results | File reduction: 78.39% · Output size: 894.2 KB | File reduction: 56.5% · Output size: 1800.1 KB |
| Fixture findings | Shrinks the 4.14 MB standard PNG by 78.39% to 894.2 KB in native PNG format at 31.12 dB PSNR and 0.9896 SSIM. | Over 50% size reduction while preserving 2048px resolution and transparency; solid quality and easy to use. |
| Original historical observation | Aiseesoft Free Image Compressor shrinks the 4.24 MB (2048×2048) anchor PNG down to 894.2 KB (-78.39%, 4.63× ratio) without login, preserving native PNG dimensions at PSNR=31.12 dB and SSIM=0.9896. | Aconvert processes compression on cloud servers, reducing the 4.14 MB anchor by 56.5% to 1.80 MB under default Lossy 80 while maintaining SSIM 0.9966 and preserving micro-textures. |
| Suitable uses · historical assessment | Users looking for high-ratio (-78%) no-login PNG compression on files under 5 MB without creating an account | Users and webmasters needing fast free image compression while preserving transparency and 2048px original resolution |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | 2048 × 2048 · PNG · No watermark in test |
| Historical specification note · not an official maximum | 2048×2048 (native PNG format preserved, no-login watermark-free export) | 2048 x 2048 (Full-resolution unwatermarked PNG) |
| Watermark observation | Watermark-free | No watermark |
| Batch & API | Supports up to 40 images in batch with one-click Download All | Supports up to 10 files concurrent upload with multi-format conversion |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | 2048 × 2048 · PNG | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 11.68s · End-to-end reference: 11.68s | Network-observed server wait: 11.2s · End-to-end reference: 14.7s |
| Date & fixture | 2026-10-23 · anchor_compress_v1 · US-West (California, AS2914) | 2026-11-01 · anchor_compress_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | No login in this test | No login in this test |
| Sign-in methods | Completely guest-accessible; no login or registration required | All platform features accessible directly without registration or login |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Zero registration walls or popups; displays a clean inline progress bar ("4.04 MB → 894.19 KB -78%") with direct Download and Download All buttons, alongside a single text link for its desktop video app. | Not verified |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Aiseesoft Studio | Aconvert Project (PDFConvertOnline.com) |
| Recorded origin | Hong Kong / Shenzhen, China | United States |
| Domain history record | 2008–Present | Development team active since 2000 |
| Background & reputation assessment | Operated by Aiseesoft Studio (established multimedia and document utility vendor since 2008). | Not verified |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | No third-party services listed in this record; this is not proof that none exist. | Google AdSense · Google Analytics |
| Engineering & privacy assessment | Direct HTTPS multipart POST to image-api.aiseesoft.com/imageCompress with CDN delivery via istorage-cloud.com; no account required. | Not verified |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Claims deletion within 2 hours; deletion not independently verified |
| Evaluation basis | ||
| Pricing transparency | 31 / 35 Landing page explicitly states "100% Free — Up to 40 images, max 5MB each" right inside the upload dropzone (01_landing.png); the 4.04 MB anchor PNG is compressed and downloaded without login or paywall prompts (02_result.png, 03_download.png). | |
| Interaction restraint | 26 / 30 Zero registration walls or popups; displays a clean inline progress bar ("4.04 MB → 894.19 KB -78%") with direct Download and Download All buttons, alongside a single text link for its desktop video app. | |
| Background & reputation | 16.5 / 20 Operated by Aiseesoft Studio (established multimedia and document utility vendor since 2008). | |
| Engineering & privacy | 12.5 / 15 Direct HTTPS multipart POST to image-api.aiseesoft.com/imageCompress with CDN delivery via istorage-cloud.com; no account required. | |
| Task quality | 57.5 / 65 Aggressively compresses the 4,237,170-byte (4,137.9 KB) 2048×2048 PNG down to 915,651 bytes (894.2 KB, -78.39%, 4.63× ratio) while keeping native 2048×2048 PNG format, achieving PSNR = 31.12 dB and SSIM = 0.9896 (57.5/65) | 56 / 65 Size Reduction: -56.5% (4137.9 KB → 1800.1 KB, 2.3× ratio) · PSNR: 36.1 dB · SSIM: 0.9966 |
| Deliverable specifications | 19 / 20 Exports a full 2048×2048 watermark-free PNG without login, though single files are capped at 5 MB (19.0/20) | 20 / 20 Clean unwatermarked export (8/8); Export spec: 2048 x 2048 (Full-resolution unwatermarked PNG) |
| Processing speed | 10.5 / 15 Single-sample XHR timing (image-api.aiseesoft.com/imageCompress): 11.68s combined upload and server compression (10.5/15) | 8.5 / 15 Network-observed server wait: 11.2s (API mode: cloud_server; network upload 3.5s / end-to-end 14.7s shown for reference only, never penalized) |
