Backblaze B2 vs Mailjet Comparison
Detailed comparison of features, pricing, and capabilities
Last updated April 4, 2026
Overview
Compare key metrics and features at a glance
Backblaze B2
https://www.backblaze.com/b2
Backblaze B2 is a cloud storage service that provides scalable object storage at 1/4th the cost of Amazon S3. The service offers robust APIs, CLI tools, and integrations with various applications, allowing developers and businesses to store and retrieve any amount of data. It features strong durability, native encryption, and lifecycle rules for data management.
Mailjet
https://www.mailjet.com
Mailjet is a cloud-based email delivery and tracking platform that enables businesses to send marketing and transactional emails. The service provides features for email automation, template design, A/B testing, and advanced analytics for monitoring email performance. As part of Sinch, Mailjet offers comprehensive APIs and SMTP relay services for developers while maintaining user-friendly email marketing tools for marketers.
Quick Comparison
| Detail | Backblaze B2 | Mailjet |
|---|---|---|
| Category | Cloud Storage | Email Marketing |
| Starting Price | Free | Free |
| Plans Available | 1 | 4 |
| Features Tracked | 1 | 17 |
| Founded | 2007 | 2010 |
| Headquarters | San Mateo, USA | Paris, France |
Features
Detailed feature-by-feature comparison
Feature Comparison
| Feature | | |
|---|---|---|
| api | ||
| APIs & SMTP Relay | ||
| S3-Compatible API | ||
| Webhooks | ||
| compliance | ||
| GDPR Compliance | ||
| core | ||
| A/B Testing | ||
| AI Email Generator | ||
| Advanced Segmentation | ||
| Contact Management | ||
| Email Automation | ||
| Email Editor | ||
| Email Tracking & Analytics | ||
| Form Builder | ||
| Inbox Preview | ||
| Landing Pages | ||
| Personalization | ||
| Real-time Collaboration | ||
| security | ||
| Role Management | ||
| SPF/DKIM Authentication | ||
Pricing
Compare pricing plans and value for money
Backblaze B2
From $0/mo
Price Components
- storage: $0.006/GB
- download: $0.01/GB
Best For
Developers, businesses, and AI teams seeking affordable, S3-compatible object storage with high performance and low egress costs for scalable data needs.
Mailjet
From $0/mo
Price Components
- emails: $0/email (6000 included)
- base_subscription: $17/month (15000 included)
- email_previews: $0/preview (500 included)
- email_validations: $0/validation (500 included)
- base_subscription: $27/month (15000 included)
Best For
Small to mid-sized teams and developers needing affordable email automation, robust APIs, and real-time collaboration for targeted marketing campaigns.
Integrations
See which third-party services are supported
Supported Integrations
Coming Soon
Integration comparison data for Backblaze B2, Mailjet is being collected and will be available soon.
Strengths & Limitations
Key strengths and limitations of each service
Backblaze B2
Developers, businesses, and AI teams seeking affordable, S3-compatible object storage with high performance and low egress costs for scalable data needs.
- S3-compatible API enables seamless drop-in replacement for AWS S3 tools and code.
- Costs 1/5th of Amazon S3 with flat rates, free first 10GB, and generous free egress up to 3x storage.
- Supports Object Lock for ransomware protection and 10TB file uploads with no total capacity limit.
- B2 Overdrive delivers 1Tbps throughput for AI/ML/HPC at hyperscaler speeds without egress fees.
- Lacks advanced enterprise features like multi-region replication found in hyperscalers.
- Smaller company size may raise concerns about long-term scalability for massive enterprises.
- Limited feature set compared to full-suite platforms, focusing mainly on core storage.
Mailjet
Small to mid-sized teams and developers needing affordable email automation, robust APIs, and real-time collaboration for targeted marketing campaigns.
- Offers real-time collaboration in Passport editor for multiple users to edit campaigns simultaneously with version control.
- Supports A/B testing of up to ten email versions on subject lines, content, and design to boost performance.
- Provides forever free plan with core features and low Essential tier at $17/month for 15,000 emails without daily limits.
- Includes open-source MCP Server for conversational AI queries on campaign analytics like open rates by country.
- Free plan includes daily sending limits and Mailjet branding on emails.
- Lacks dominance compared to market leaders like Mailchimp and Klaviyo in overall share.
Company Info
Company details and background
Backblaze B2
Mailjet
Comparison FAQ
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