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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 | aconvert.com | Img2Go | Switch / compare |
|---|---|---|---|
| Background removal | Not tested in topic | 88/100 2048 × 2048 (4.2 MB full-resolution RGBA PNG) · Historical description; output not attached | Compare in task topic → |
| Image compression | 86/100 2048 × 2048 · PNG | 80/100 2048 × 2048 · PNG | Active task |
| Image upscaling | Not tested in topic | 84/100 1024 × 1024 (2.0x default PNG, 1.1 MB) / custom dimensions · Historical description; output not attached | Compare in task topic → |
| Image generation | Not tested in topic | 87/100 1024 × 1024 · PNG | Compare in task topic → |
| Photo restoration | Not tested in topic | 89/100 1024 × 1024 · PNG | Compare in task topic → |
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Browse this task →| Criterion | 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 | IMG2GO Compress Image Image compression 80/100 Seven-aspect task score Login-free access offers compression controls and deletion; the default preset reduces size substantially but causes gradient banding, alongside banner ads. Tested export 2048 × 2048 · PNG Historical test · 2026-10-18 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | 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 ↗ | Website free, monthly, annual and education plans; USD, Business billed per person · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits Starter2026-10-20 ↗ USD 8/month USD 77/year Monthly Baseline 1× AI usage; batch processing Annual Baseline 1× AI usage; 64GB files and batch processing Business2026-10-20 ↗ USD 89/month USD 854/year Monthly Per-user billing; 20× Starter AI usage Annual Per-user billing; 20× Starter AI usage Education program2026-10-20 ↗ Free Free Free Paid apps free after student/teacher eligibility verification; non-commercial educational use only 8 plan / billing-period records, all listed; — means that period is not recorded. Actual annual amounts are $77/$278/$854. Absolute removal quotas and per-image credit usage are unpublished; 1×/5×/20× cannot be converted into image counts. Cancellation, sources & verification recordPage advertises a 14-day money-back guarantee and cancellation anytime; eligibility is subject to terms. Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ |
| Free & trial allowance on the test date | Completely free, 40MB per file limit, up to 10 files per batch | Free no-login access to Less / Recommended / Extreme / Lossless presets and Target File Size mode |
| Cancellation & refunds | Not verified | Page advertises a 14-day money-back guarantee and cancellation anytime; eligibility is subject to terms. |
| Disclosure of costs & limits | Compression parameters and instructions clearly disclosed on page | Displays all compression presets clearly in the Settings panel after file selection |
| Task quality | ||
| Measured fixture results | File reduction: 56.5% · Output size: 1800.1 KB | File reduction: 78.49% · Output size: 890.1 KB |
| Fixture findings | Over 50% size reduction while preserving 2048px resolution and transparency; solid quality and easy to use. | Default settings reduced this fixture by about 78% with some quality loss; lower compression is available. |
| Original historical observation | 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. | IMG2GO offers a comprehensive 7-mode compression settings panel (02_workspace.png). Under the default 'Recommended compression' preset, it aggressively shrinks our 4,137.9 KB PNG by 78.49% to 890.1 KB (03_download.png) at 31.68 dB PSNR; quality-focused users can select 'Less compression' or 'Lossless compression' before clicking Compress Now. |
| Suitable uses · historical assessment | Users and webmasters needing fast free image compression while preserving transparency and 2048px original resolution | Users who want granular preset control (Lossless / Less / Recommended / Extreme / Target KB) and GDPR-compliant instant task deletion |
| 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 x 2048 (Full-resolution unwatermarked PNG) | 2048×2048 full-resolution PNG free direct export |
| Watermark observation | No watermark | Watermark-free |
| Batch & API | Supports up to 10 files concurrent upload with multi-format conversion | Supports multi-file upload and ZIP archive download |
| 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: 11.2s · End-to-end reference: 14.7s | Network-observed server wait: 5.8s · End-to-end reference: 8.3s |
| Date & fixture | 2026-11-01 · anchor_compress_v1 · US-West (California, AS2914) | 2026-10-18 · 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 | All platform features accessible directly without registration or login | No login required (paid Credits available for heavy batch users) |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Not verified | Displays house ads for sister tools (Audio2Edit / OCR2Edit) and GoDaddy banners at the bottom, while keeping the blue 'Download' button clean and unobstructed (03_download.png). |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Aconvert Project (PDFConvertOnline.com) | QaamGo Web GmbH (IMG2GO / PDF2Go) |
| Recorded origin | United States | Radolfzell, Germany |
| Domain history record | Development team active since 2000 | 2016–Present (10-year European online conversion suite) |
| Background & reputation assessment | Not verified | Operated by Germany-based QaamGo Web GmbH (parent company of PDF2Go and Online-Convert). |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Google AdSense · Google Analytics | Not verified |
| Engineering & privacy assessment | Not verified | Provides a prominent red 'Delete Task' button on the result screen for immediate manual server erasure (03_download.png). |
| Retention statement | Claims deletion within 2 hours; deletion not independently verified | Claims deletion within 24 hours; deletion not independently verified |
| Evaluation basis | ||
| Pricing transparency | 29 / 35 Provides 4 clear presets upon upload (Less compression / Recommended compression / Extreme compression / Lossless compression) plus Target File Size and Percentage modes (02_workspace.png) with free no-login download. | |
| Interaction restraint | 23 / 30 Displays house ads for sister tools (Audio2Edit / OCR2Edit) and GoDaddy banners at the bottom, while keeping the blue 'Download' button clean and unobstructed (03_download.png). | |
| Background & reputation | 18 / 20 Operated by Germany-based QaamGo Web GmbH (parent company of PDF2Go and Online-Convert). | |
| Engineering & privacy | 14 / 15 Provides a prominent red 'Delete Task' button on the result screen for immediate manual server erasure (03_download.png). | |
| Task quality | 56 / 65 Size Reduction: -56.5% (4137.9 KB → 1800.1 KB, 2.3× ratio) · PSNR: 36.1 dB · SSIM: 0.9966 | 48.7 / 65 Default 'Recommended' preset aggressively reduces size by 78.49% (4.65×) to 890.1 KB, lowering PSNR to 31.68 dB (SSIM = 0.9906) with slight gradient banding (48.7/65) |
| Deliverable specifications | 20 / 20 Clean unwatermarked export (8/8); Export spec: 2048 x 2048 (Full-resolution unwatermarked PNG) | 18.5 / 20 Preserves full 2048×2048 resolution and native PNG format while offering 7 compression presets (18.5/20) |
| Processing speed | 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) | |
