Aconvert · Image compression
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.
US-West (California, AS2914)
2048 × 2048 · PNG · Open native file ↗
Subsequent pricing and service checks are shown separately without altering historical scores.
One run does not establish all complex scenes, untested paid maxima or long-term uptime.
Plans & historical pricing
Aconvert 100% free file conversion and compression service · 2026-11-01
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 record
Cancellation and refund terms unverified
Aconvert Official Homepage ↗ · 2026-11-01 Capture 1 ↗
Aconvert About and Free Model ↗ · 2026-11-01 Capture 1 ↗
Pricing recorded on the test date · 2026-11-01
100% free (40MB per file limit, max 10 files per batch)
Free
Historical context only; not current purchase guidance.
Delivery & access
- Free delivery record
- 2048 x 2048 (Full-resolution unwatermarked PNG)
- Attached file dimensions
- 2048 × 2048 · PNG
Read directly from the attached file; this does not establish free download availability at that size.
- Watermark
- No watermark
- Free allowance
- Completely free, 40MB per file limit, up to 10 files per batch
- Account requirements
- All platform features accessible directly without registration or login
- Maximum specification record
- 2048 x 2048 (Full-resolution unwatermarked PNG)
May include advertised capabilities; this does not establish a tested paid tier.
- Batch & API
- Supports up to 10 files concurrent upload with multi-format conversion
- Manual refinement
- Not recorded or not verified
Tested result & sample
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.
- Fixture
- anchor_compress_v1
- Recorded environment
- US-West (California, AS2914)
- Network-observed server wait
- 11.2 s
- End-to-end reference
- 14.7 s
Network wait includes round trips, queuing and polling error, not pure inference time. Local timings depend on the device; repetition counts are not standardized in legacy records.
Experience, rules & trust
- Disclosure
- Compression parameters and instructions clearly disclosed on page
- Interaction
- Not recorded or not verified
- Entity record
- Aconvert Project (PDFConvertOnline.com)
- Origin
- United States
- Domain history record
- Development team active since 2000
- Third-party tracking record
- Google AdSense · Google Analytics
- External information
- Not recorded or not verified
- Processing
- Cloud dedicated server processing + 2-hour automatic purge
- Retention statement
- Uploaded and converted files are permanently destroyed within 2 hours
A recorded statement does not verify deletion or all data-processing behavior.
Verifiable audit trail & evidence
Four SHA-256-verified stages link the benchmark fixture, same-run interface screenshots, native exported artifact and archived pricing sources.
anchor_compress_v1 · Inspect fixture & file inspector →
Captures entry rules, result view and export disclosure.
Aconvert Official Homepage (snapshot ↗) · Aconvert About and Free Model (snapshot ↗)
Screenshots, native output and official claims support different conclusions. Evidence grades are not product safety certifications.
Evaluation basis & full scores · Overall 85.7/100
Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.
Scoring version 2.3.1 · Test fixture anchor_compress_v1
Honesty & reputation · 88.5/100 · 30%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Pricing transparency | 34 / 35 | Explanation unavailable | Evidence A → |
| Interaction restraint | 26 / 30 | Explanation unavailable | Evidence A → |
| Background & reputation | 15 / 20 | Explanation unavailable | Evidence A → |
| Engineering & privacy | 13.5 / 15 | Explanation unavailable | Evidence A → |
Capability · 84.5/100 · 70%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Task quality | 56 / 65 | Size Reduction: -56.5% (4137.9 KB → 1800.1 KB, 2.3× ratio) · PSNR: 36.1 dB · SSIM: 0.9966 | Evidence A → |
| Deliverable specifications | 20 / 20 | Clean unwatermarked export (8/8); Export spec: 2048 x 2048 (Full-resolution unwatermarked PNG) | Evidence A → |
| 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) | Evidence A → |
Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.
Revisions & corrections
- 2026-11-01
Completed real-machine benchmark evaluation and 3-node screenshot verification under RealTest Protocol v2.3.