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 | Img2Go | Kraken.io | Switch / compare |
|---|---|---|---|
| Background removal | 88/100 2048 × 2048 (4.2 MB full-resolution RGBA PNG) · Historical description; output not attached | Not tested in topic | Compare in task topic → |
| Image compression | 80/100 2048 × 2048 · PNG | 47/100 Blocked for files >1 MB ('File size too large. Upgrade to PRO and get 32MB max file size.') · Historical description; output not attached | Active task |
| Image upscaling | 84/100 1024 × 1024 (2.0x default PNG, 1.1 MB) / custom dimensions · Historical description; output not attached | Not tested in topic | Compare in task topic → |
| Image generation | 87/100 1024 × 1024 · PNG | Not tested in topic | Compare in task topic → |
| Photo restoration | 89/100 1024 × 1024 · 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 | 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 | Kraken.io Web Interface Image compression 47/100 Seven-aspect task score The interface avoids ad interruptions, but free files are capped at 1MB and many features need Pro; this fixture was rejected, so compression quality was not tested. Tested export Blocked for files >1 MB ('File size too large. Upgrade to PRO and get 32MB max file size.') · Historical description; output not attached Historical test · 2026-10-18 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | 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 ↗ | Kraken.io API and Web Interface PRO plans (Free / Micro / Basic / Advanced / Premium / Enterprise); USD · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free Account2026-10-21 ↗ Free Free Free 100 MB free testing quota without credit card; Free Web Interface restricts single files to ≤1 MB. Micro Monthly2026-10-21 ↗ USD 5/month — Monthly 500 MB of images/month (USD 5 per additional GB); includes Web Interface PRO (up to 32 MB/file) and full API access. Micro Yearly2026-10-21 ↗ — USD 50/year Annual USD 50/year (2 months free); 500 MB of images/month (USD 5 per additional GB), including Web Interface PRO and API. Basic Monthly2026-10-21 ↗ USD 9/month — Monthly 2 GB of images/month (USD 4 per additional GB); includes Web Interface PRO and full API access. Basic Yearly2026-10-21 ↗ — USD 90/year Annual USD 90/year (2 months free); 2 GB of images/month (USD 4 per additional GB). Advanced Monthly2026-10-21 ↗ USD 19/month — Monthly 5 GB of images/month (USD 3 per additional GB); includes Web Interface PRO and full API access. Advanced Yearly2026-10-21 ↗ — USD 190/year Annual USD 190/year (2 months free); 5 GB of images/month (USD 3 per additional GB). Premium Monthly2026-10-21 ↗ USD 39/month — Monthly 15 GB of images/month (USD 2 per additional GB); includes Web Interface PRO and full API access. Premium Yearly2026-10-21 ↗ — USD 390/year Annual USD 390/year (2 months free); 15 GB of images/month (USD 2 per additional GB). Enterprise Monthly2026-10-21 ↗ USD 79/month — Monthly 60 GB of images/month (USD 1 per additional GB); includes Web Interface PRO and full API access. Enterprise Yearly2026-10-21 ↗ — USD 790/year Annual USD 790/year (2 months free); 60 GB of images/month (USD 1 per additional GB). 11 plan / billing-period records, all listed; — means that period is not recorded. The official pricing page lists the Free Account (100 MB testing quota; Free Web Interface capped at 1 MB/file) and five monthly/yearly tiers (yearly includes 2 months free at USD 50 / 90 / 190 / 390 / 790 per year). All paid plans include Web Interface PRO (up to 32 MB/file), API access, WordPress plugin, and Magento extension. Cancellation, sources & verification recordNo long-term contract; upgrade, downgrade, or cancel anytime under Account Settings. VAT applies to non-business EU customers. Kraken.io official monthly/yearly pricing and FAQ ↗ · 2026-10-21 Capture 1 ↗ · Capture 2 ↗ |
| Free & trial allowance on the test date | Free no-login access to Less / Recommended / Extreme / Lossless presets and Target File Size mode | Free Web Interface strictly capped at ≤1 MB per file; paid PRO unlocks 32 MB per file |
| Cancellation & refunds | Page advertises a 14-day money-back guarantee and cancellation anytime; eligibility is subject to terms. | No long-term contract; upgrade, downgrade, or cancel anytime under Account Settings. VAT applies to non-business EU customers. |
| Disclosure of costs & limits | Displays all compression presets clearly in the Settings panel after file selection | Small gray footer note below dropzone ('Free Web Interface has a file size limit of 1MB') + inline error row on upload |
| Task quality | ||
| Measured fixture results | File reduction: 78.49% · Output size: 890.1 KB | File reduction: 0% · Output size: 4137.9 KB |
| Fixture findings | Default settings reduced this fixture by about 78% with some quality loss; lower compression is available. | The roughly 4MB fixture exceeded the recorded 1MB free limit; free compression could not complete. |
| Original historical observation | 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. | Kraken.io's free Web Interface remains stuck in a decade-old '1 MB max file size' quota (01_landing.png): when fed our 4,137.9 KB (2048×2048) benchmark PNG, the queue immediately rejects it with 'File size too large. Upgrade to PRO and get 32MB max file size.' (02_workspace.png, 03_download.png). |
| Suitable uses · historical assessment | Users who want granular preset control (Lossless / Less / Recommended / Extreme / Target KB) and GDPR-compliant instant task deletion | Only usable for tiny web icons/thumbnails already under 1 MB, or enterprise developers with a paid Kraken.io PRO API subscription |
| Result & output evidence | No native output obtained; the preview does not establish final export quality. | |
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | Blocked for files >1 MB ('File size too large. Upgrade to PRO and get 32MB max file size.') · Historical description; output not attached · Check watermark record No native output is attached; check the evidence for specification and watermark claims. |
| Historical specification note · not an official maximum | 2048×2048 full-resolution PNG free direct export | Free tier capped strictly at 1 MB per file (rejects our 4.24 MB benchmark PNG; requires PRO for 32 MB) |
| Watermark observation | Watermark-free | Watermark-free (only for tiny ≤1 MB files) |
| Batch & API | Supports multi-file upload and ZIP archive download | Supports multi-file and ZIP upload (all subject to the 1 MB/file free cap); full REST API on PRO |
| Recorded free-tier dimensions | 2048 × 2048 | Not verified |
| Attached file dimensions | 2048 × 2048 · PNG | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 5.8s · End-to-end reference: 8.3s | Network-observed server wait: 0.2s · End-to-end reference: 0.2s |
| Date & fixture | 2026-10-18 · 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 | Account required in this test |
| Sign-in methods | No login required (paid Credits available for heavy batch users) | No login required for ≤1 MB; lifting the 1 MB cap requires a paid Kraken.io PRO subscription |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | 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). | No fake download ads, but steps 1, 3, and 4 (URL Paster, Image Resizing, Image Conversion) are locked behind 'available in Kraken.io PRO' and any file over 1 MB fails with a PRO upgrade prompt (03_download.png). |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | QaamGo Web GmbH (IMG2GO / PDF2Go) | Nekkra UG (Kraken.io) |
| Recorded origin | Radolfzell, Germany | Germany |
| Domain history record | 2016–Present (10-year European online conversion suite) | 2013–Present (13-year image optimization service) |
| Background & reputation assessment | Operated by Germany-based QaamGo Web GmbH (parent company of PDF2Go and Online-Convert). | Operated by Germany-based Nekkra UG (founded in 2013), well-known in legacy WordPress/Magento optimization workflows. |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Not verified | Not verified |
| Engineering & privacy assessment | Provides a prominent red 'Delete Task' button on the result screen for immediate manual server erasure (03_download.png). | Clearly states that optimized files remain available for 12 hours before automatic deletion. |
| Retention statement | Claims deletion within 24 hours; deletion not independently verified | Claims deletion within 12 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. | 21 / 35 Discloses 'Free Web Interface has a file size limit of 1MB' in small gray footer text below the dropzone (01_landing.png); however, capping a 'Free Online Image Optimizer and Compressor' at 1 MB blocks almost every real-world high-res PNG/JPG that actually needs compression, immediately prompting 'File size too large. Upgrade to PRO and get 32MB max file size.' (02_workspace.png, 03_download.png). |
| 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). | 21 / 30 No fake download ads, but steps 1, 3, and 4 (URL Paster, Image Resizing, Image Conversion) are locked behind 'available in Kraken.io PRO' and any file over 1 MB fails with a PRO upgrade prompt (03_download.png). |
| Background & reputation | 18 / 20 Operated by Germany-based QaamGo Web GmbH (parent company of PDF2Go and Online-Convert). | 16 / 20 Operated by Germany-based Nekkra UG (founded in 2013), well-known in legacy WordPress/Magento optimization workflows. |
| Engineering & privacy | 14 / 15 Provides a prominent red 'Delete Task' button on the result screen for immediate manual server erasure (03_download.png). | 10 / 15 Clearly states that optimized files remain available for 12 hours before automatic deletion. |
| Task quality | 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) | 20 / 65 Rejects our 4,137.9 KB (4.24 MB) standard 2048×2048 PNG benchmark anchor due to its strict 1 MB free file size cap (20.0/65) |
| Deliverable specifications | 18.5 / 20 Preserves full 2048×2048 resolution and native PNG format while offering 7 compression presets (18.5/20) | 7.7 / 20 Free tier is restricted to files ≤1 MB, preventing free export of standard high-resolution PNG/JPG images (7.7/20) |
| Processing speed | 10 / 15 Client-side size check rejects >1 MB files in 0.2s with a PRO upgrade notice (10.0/15) | |
