Test record & evaluation basis

BIRME · Image compression

BIRME is a free, no-login client-side image resizer and compressor that completes 88.4% volume reduction in 342ms using Pica high-quality interpolation to 512x512 while retaining native PNG RGBA transparency, ideal for e-commerce and web batch optimization; however, keeping original dimensions while preserving PNG format in browser Canvas triggers file expansion due to uncompressed Canvas re-encoding.

Test date 2026-11-01Completely freeNative output attachedMethod 2.3.1
1 · Date, environment & tier2026-11-01 · Guest flow

US-West (California, AS2914)

2 · Fixture & native exportFixed PNG fixture (anchor_compress_v1)

512 × 512 · PNG · Open native file ↗

3 · Price checks vs. test scoreOfficial pricing checked 2026-11-01

Subsequent pricing and service checks are shown separately without altering historical scores.

4 · What one test cannot proveScoped to this fixture & path

One run does not establish all complex scenes, untested paid maxima or long-term uptime.

Plans & historical pricing

BIRME 100% free client-side batch image processing and compression · 2026-11-01

Plan · source date
Monthly / one-time
Annual bill / period
Quota & limits
Free
Free
Free Completely free without login; unlimited batch image processing constrained only by client memory

Smart crop, format conversion (JPG/PNG/WebP/AVIF), quality compression, watermark, AI background removal and upscaling;Pure client-side execution; very large batches may consume significant browser memory;Permanently free, no renewal;Perpetual access

1 plan / billing-period records, all listed; — means that period is not recorded.

All batch resizing, compression, AI background removal, and upscaling are 100% free with voluntary donation support and zero paid plans.

Cancellation, sources & verification record

Cancellation and refund terms unverified

BIRME Official Studio ↗ · 2026-11-01 Capture 1 ↗

Pricing recorded on the test date · 2026-11-01

100% Free (Unlimited / No watermark / Voluntary donation)

Free

Historical context only; not current purchase guidance.

Delivery & access

Free delivery record
512 × 512 (Default Pica high-quality scaling, preserving native PNG)
Attached file dimensions
512 × 512 · PNG

Read directly from the attached file; this does not establish free download availability at that size.

Watermark
No watermark
Free allowance
Completely free, no quota limits, pure client-side batch processing
Account requirements
All features available directly without registration or login
Maximum specification record
512 × 512 (Default Pica high-quality scaling, preserving native PNG)

May include advertised capabilities; this does not establish a tested paid tier.

Batch & API
Supports arbitrary batch processing limited only by local device memory
Manual refinement
Not recorded or not verified

Tested result & sample

BIRME executes purely in local browser Canvas with Pica interpolation, reducing 4.14 MB to 481.4 KB (-88.4%) while preserving PNG format and transparency in 342ms.

Fixture
anchor_compress_v1
Recorded environment
US-West (California, AS2914)
Local processing record
0.34 s
End-to-end reference
0.34 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
Page transparently outlines all resizing and compression parameters
Interaction
Not recorded or not verified
Entity record
BIRME Project
Origin
United Kingdom
Domain history record
Founded in 2013
Third-party tracking record
Google Analytics
External information
Continuously operating for 13 years since 2013, renowned for pure client-side privacy.
Processing
Pure client-side in-browser Canvas/WebAssembly offline processing, zero uploads
Retention statement
Data never leaves device, destroyed immediately upon tab closure

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.

Stage A · Benchmark fixture Fixed PNG fixture

anchor_compress_v1 · Inspect fixture & file inspector →

Stage B · Same-run screenshots 2 flow screenshots archived

Captures entry rules, result view and export disclosure.

Stage C · Native exported file 512 × 512 · PNG

Open native exported file ↗

Stage D · Archived pricing sources 1 official source snapshots

BIRME Official Studio (snapshot ↗)

Screenshots, native output and official claims support different conclusions. Evidence grades are not product safety certifications.

Evaluation basis & full scores · Overall 83.4/100

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 · 96/100 · 30%

CriterionScoreRationaleBasis
Pricing transparency35 / 35 Explanation unavailable Evidence A →
Interaction restraint28 / 30 Explanation unavailable Evidence A →
Background & reputation18 / 20 Explanation unavailable Evidence A →
Engineering & privacy15 / 15 Explanation unavailable Evidence A →

Capability · 78/100 · 70%

CriterionScoreRationaleBasis
Task quality48 / 65 Size Reduction: -88.37% (4137.9 KB → 481.4 KB, 8.6× ratio) · PSNR: 27.59 dB · SSIM: 0.9755 Evidence A →
Deliverable specifications15 / 20 Clean unwatermarked export (8/8); Export spec: 512 × 512 (Default Pica high-quality scaling, preserving native PNG) Evidence A →
Processing speed15 / 15 Network-observed server wait: 0.34s (API mode: client_side; network upload 0s / end-to-end 0.34s 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

Prepare a correction or update →
Benchmark evidence preview

Open original ↗