Comparison

Kraken.io vs Uploadcare

On the evidence we track, Kraken.io leads this comparison with a composite score of 73/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Kraken.io full profile →Uploadcare full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

★Kraken.io73

Uploadcare56

Attribute comparison across 2 tools
Attribute	Kraken.ioLeader	Uploadcare
Vioscale score	73 / 100low · 37%	56 / 100high · 75%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	freemium	freemium
Price levelpricing.price_level	low	low
Starting pricepricing.starting_price	$5	-
Transparentpricing.transparent	✓	✗
Integrations
Countintegrations.count	7	5
Security
Certificationssecurity.certifications	-	SOC 2 Type II, ISO 27001, HIPAA
Gdprsecurity.gdpr	-	✓
Hipaasecurity.hipaa	-	✓
Iso27001security.iso27001	-	✓
Soc2security.soc2	-	✓
Trust centersecurity.trust_center	-	https://uploadcare.com/about/security-whitepaper/
Reliability
Sla pctreliability.sla_pct	-	99.9
Market
Availabilitymarket.availability	Available worldwide	Available worldwide

Score

Vioscale score

Kraken.io73 / 100low · 37%

Uploadcare56 / 100high · 75%

Pricing

Free tier

Kraken.io✓

Uploadcare✓

Model

Kraken.iofreemium

Uploadcarefreemium

Price level

Kraken.iolow

Uploadcarelow

Starting price

Kraken.io$5

Uploadcare–

Transparent

Kraken.io✓

Uploadcare✗

Integrations

Count

Kraken.io7

Uploadcare5

Security

Certifications

Kraken.io–

UploadcareSOC 2 Type II, ISO 27001, HIPAA

Gdpr

Kraken.io–

Uploadcare✓

Hipaa

Kraken.io–

Uploadcare✓

Iso27001

Kraken.io–

Uploadcare✓

Soc2

Kraken.io–

Uploadcare✓

Trust center

Kraken.io–

Uploadcarehttps://uploadcare.com/about/security-whitepaper/

Reliability

Sla pct

Kraken.io–

Uploadcare99.9

Market

Availability

Kraken.ioAvailable worldwide

UploadcareAvailable worldwide

Capabilities

Feature-by-feature on the axes that matter for image optimization. “-” means undocumented, not absent.

Capability comparison for Image Optimization
Capability	Kraken.io	Uploadcare
Capabilities
Architecture model	Managed cloud API CDN	Managed cloud API CDN
On the fly URL parameter resizing and cropping	✓	✓
Auto webp avif format negotiation via browser headers	-	✓
AI smart crop face detection centering	-	✓
Lossless and perceptual lossy compression algorithms	✓	✓
Global CDN edge delivery network included	-	✓
Watermarking and text overlay via URL API	-	-
Video transcoding and gif to mp4 conversion	-	✓
Svg sanitization and optimization	-	-
Dashboard analytics for bandwidth cache hit ratio	✓	-
SOC2 type ii	-	✓
ISO 27001	-	✓
Pricing model	Flat monthly tier	Freemium basic

Capabilities

Architecture model

Kraken.ioManaged cloud API CDN

UploadcareManaged cloud API CDN

On the fly URL parameter resizing and cropping

Kraken.io✓

Uploadcare✓

Auto webp avif format negotiation via browser headers

Kraken.io-

Uploadcare✓

AI smart crop face detection centering

Kraken.io-

Uploadcare✓

Lossless and perceptual lossy compression algorithms

Kraken.io✓

Uploadcare✓

Global CDN edge delivery network included

Kraken.io-

Uploadcare✓

Watermarking and text overlay via URL API

Kraken.io-

Uploadcare-

Video transcoding and gif to mp4 conversion

Kraken.io-

Uploadcare✓

Svg sanitization and optimization

Kraken.io-

Uploadcare-

Dashboard analytics for bandwidth cache hit ratio

Kraken.io✓

Uploadcare-

SOC2 type ii

Kraken.io-

Uploadcare✓

ISO 27001

Kraken.io-

Uploadcare✓

Pricing model

Kraken.ioFlat monthly tier

UploadcareFreemium basic

What each one is

The product in its own terms, so the numbers below have context.

Kraken.io

Leader

A cloud-based image processing service that minimizes image file sizes across multiple formats to help websites load faster and reduce bandwidth usage. It provides optimization through a web browser interface, API, and integrations with content management systems.

Independently observed

Uploadcare

A file management system that handles uploading, storage, real-time optimization, and CDN delivery of images, videos, and documents for web and mobile applications, with URL-based image transformations.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Kraken.io

Leader

from $5/moHybridFree tier

Free (100 MB) to $79/mo (60 GB quota). Yearly billing includes 2-month discount.

FreeFree
- Full API Access
- Web Interface
- WordPress Plugin
- Magento Extension
- Kraken.io Cloud Storage
Micro$5/mo ($50/yr, save 2 months)
- Full API Access
- Web Interface PRO
- WordPress Plugin
- Magento Extension
- Kraken.io Cloud Storage
Basic$9/mo ($90/yr, save 2 months)
- Full API Access
- Web Interface PRO
- WordPress Plugin
- Magento Extension
- Kraken.io Cloud Storage
Advanced$19/mo ($190/yr, save 2 months)
- Full API Access
- Web Interface PRO
- WordPress Plugin
- Magento Extension
- Kraken.io Cloud Storage
Premium$39/mo ($390/yr, save 2 months)
- Full API Access
- Web Interface PRO
- WordPress Plugin
- Magento Extension
- Kraken.io Cloud Storage
EnterpriseContact sales
- Full API Access
- Web Interface PRO
- WordPress Plugin
- Magento Extension
- Kraken.io Cloud Storage

as of 2026-09-01verify ↗

Uploadcare

HybridFree tier

as of 2026-09-01verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Kraken.io	Uploadcare
WebPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✓

Platforms

Web

Kraken.io✓

Uploadcare✓

Deployment

Cloud / SaaS

Kraken.io✓

Uploadcare✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)

AWS S3

Kraken.io

Leader

7 total - 6 not shared

WordPress
Magento
Microsoft Azure
Rackspace CloudFiles
SoftLayer
Gulp

Independently observed

Uploadcare

5 total - 4 not shared

Zapier
Dropbox
Facebook
Unsplash

Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.