Freedom251 › Image Compression Software
Kraken.io
What Kraken.io is
Kraken.io is an image optimization service with a browser interface and API access. The browser tool can optimize, compress, resize, and convert images without code; it also accepts ZIP archives of multiple images and returns a processed archive. Supported formats are JPG, PNG, WebP, GIF, SVG, AVIF, HEIC, and PDF. The service lists both compression modes, batch processing, metadata controls, and image resizing. The maximum upload size is 32. Accounts begin with 100 MB of testing quota, and signup does not require a credit card. The listed paid plans range from Micro, with 500 MB of images per month, to Enterprise, with 60 GB per month; the pricing note says paid service starts at $5/mo. Monthly quota is measured using unprocessed source image data, and additional usage is charged per GB at the rate for the selected plan. Customers can choose monthly or yearly billing and cancel, downgrade, or upgrade without a contract. Official plugins are available for WordPress and Magento.
Who it suits
Kraken.io suits people who need browser-based or API image processing, including batch work and format conversion. It also offers plugins for WordPress and Magento.
What it does well
- Browser tool works without code
- ZIP archives support processing multiple images
- Accounts start with 100 MB of testing quota
- No credit card is required to sign up
What to know first
- Maximum upload size is 32
- Monthly quotas measure unprocessed source image data
- Additional usage is charged per GB
Limits
The free plan provides 100 MB of testing quota. Paid plans have monthly image quotas from 500 MB to 60 GB; additional usage is charged per GB at the selected plan’s rate.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | 100 MB testing quota | Free |
| Micro | $50 / yr. · 500 MB images per month · $5 per additional GB | $50 a year |
| Basic | $90 / yr. · 2 GB images per month · $4 per additional GB | $90 a year |
| Advanced | $190 / yr. · 5 GB images per month · $3 per additional GB | $190 a year |
| Premium | $390 / yr. · 15 GB images per month · $2 per additional GB | $390 a year |
| Free Account | 100 MB testing quota · no credit card | Free |
| Advanced | $19 / mo. · 5 GB images per month · $3 per additional GB | $19 a month |
| Premium | $39 / mo. · 15 GB images per month · $2 per additional GB | $39 a month |
The first 8 of 11 plans, as kraken.io lists them, read 28 Sept 2026. The maker's own page has the final word. Every plan
Getting started
- Visit https://kraken.io/.
- Sign up without a credit card to receive 100 MB of testing quota.
- Use the browser tool to optimize, compress, resize, or convert images without code.
- Upload a ZIP archive to process multiple images together.
- Choose a paid plan if needed; monthly or yearly billing is available.
Verdict
Kraken.io combines browser-based image processing with API access and batch handling. Review the quota and overage rate for a plan before sending larger volumes.
Questions
Is Kraken.io free?
Yes. The free plan provides 100 MB of testing quota, and signup does not require a credit card.
How much do paid plans cost?
The pricing note says paid plans start at $5/mo. The listed Micro plan is $50 a year, billed monthly.
Which image formats does it support?
Supported formats are JPG, PNG, WebP, GIF, SVG, AVIF, HEIC, and PDF.
Can I process multiple images at once?
Yes. The browser interface accepts ZIP archives containing multiple images and returns a processed archive.
Which platforms are listed?
The listed platform is API. Official plugins are available for WordPress and Magento.
Can I change or cancel a paid plan?
Accounts can be canceled, downgraded, or upgraded at any time without a contract. Customers can choose monthly or yearly billing.
Facts from Kraken.io's own pages
- API access
- Yes · kraken.io, 20 Sept 2026
- API authentication
- API requests use HTTPS POST with a JSON auth object containing an API key and API secret. · kraken.io, 15 Oct 2026
- API credentials
- Each plan permits up to ten sets of API credentials for separate applications or sites. · kraken.io, 15 Oct 2026
- ZIP batch processing
- The web interface accepts ZIP archives with multiple images and returns a processed archive. · kraken.io, 28 Sept 2026
- Batch processing
- Yes · kraken.io, 20 Sept 2026
- Billing frequency
- Customers can choose monthly or yearly billing. · kraken.io, 28 Sept 2026
- Billing terms
- Terms state subscriptions are billed in advance monthly or yearly and are non-refundable. · kraken.io, 15 Oct 2026
- Browser workflow
- The web interface accepts drag-and-drop images, ZIP archives and format conversion without coding. · kraken.io, 15 Oct 2026
- Changelog
- Plugin version 3.0.3 added 64 locales and a site-savings panel; version 3.0.2 tightened permissions and improved quota and error messaging. · wordpress.org, 15 Oct 2026
- Company size and headquarters
- LinkedIn lists Kraken.io as privately held, headquartered in Berlin, with 2–10 employees. · linkedin.com, 15 Oct 2026
- Compression modes
- The product provides lossy, lossless and expert optimization modes. · kraken.io, 15 Oct 2026
- Signup card requirement
- No credit card is required to sign up. · kraken.io, 28 Sept 2026
- Current status
- On October 15, 2026 the status page reported all listed systems operational and no incident reported that day. · status.kraken.io, 15 Oct 2026
- External storage
- API results can be stored directly in Amazon S3, Rackspace CloudFiles, Microsoft Azure and SoftLayer storage. · kraken.io, 15 Oct 2026
- File-size limits
- The free interface allows 1 MB files while PRO plans allow files up to 32 MB. · kraken.io, 15 Oct 2026
- Founder
- Crunchbase identifies Karim Salman as CEO and co-founder and lists the company as an active private Berlin, Germany business. · crunchbase.com, 15 Oct 2026
- Free account
- Every account starts with 100 MB of testing quota and does not require a credit card. · kraken.io, 15 Oct 2026
- Free plan
- Yes · kraken.io, 20 Sept 2026
- Free testing quota
- Every account starts with 100 MB of testing quota. · kraken.io, 28 Sept 2026
- GDPR
- Nekkra UG publishes a GDPR Data Processing Addendum effective September 4, 2023. · kraken.io, 15 Oct 2026
- Image resizing
- Images can be resized with several strategies before optimization. · kraken.io, 15 Oct 2026
- Integrations
- Documented integrations include WordPress, Magento, Gulp, Grunt and third-party clients or plugins for Haskell, Java, Python, Laravel, Symfony, Drupal, Perch, Umbraco, Contao and Sitefinity. · kraken.io, 15 Oct 2026
- Legal maker
- The legal provider is Nekkra UG (haftungsbeschränkt), registered in Berlin and represented by managing director Karim Salman. · kraken.io, 15 Oct 2026
- Licence
- WordPress.org identifies the Kraken.io Image Optimizer plugin as open-source software, but the hosted Kraken.io service is presented as a SaaS product rather than open-source software. · wordpress.org, 15 Oct 2026
Where Kraken.io stands on Freedom251
- Image Compression Software#4 of 85