Software Modernization: Cost Data and Technical Guides
Real project costs, migration strategies, and failure analysis from 200+ implementations. Published quarterly. No paywalls.
Example Project Costs
COBOL to Java
$1.2M - $2.8M
2.5M LOC · 14-18 months
Mainframe to AWS
$3.5M - $8M
Enterprise · 18-30 months
AngularJS to React
$180K - $450K
50K LOC · 4-8 months
Based on verified projects · Updated Q1 2026
Browse Migration Guides by Category
Technical guides, cost data, and failure analysis for each modernization type.
Legacy Systems
VB6, Delphi, PowerBuilder.
Legacy Apps
AngularJS, React, Next.js.
Mainframe
COBOL, AS/400, Core Systems.
Cloud Architecture
EC2 to Serverless, VMware to Cloud.
Data Modernization
Snowflake, Databricks, ETL.
AI Engineering
RAG, LLMs, GenAI.
DevOps & Integration
Platform Engineering, CI/CD.
Security & Identity
Zero Trust, IAM.
Digital Transformation
Strategy, Agile, Culture.
Trending Service Guides
Need help choosing an implementation partner?
Share your stack and budget. We'll match you with 3 vetted partners—no sales calls, no bait-and-switch pricing. Takes 2 minutes.
New to Modernization?
Not sure if you're cloud-ready?
→Start with our Cloud Readiness Assessment guide. Evaluate your infrastructure, team skills, and migration complexity.
Need to evaluate legacy systems?
→Learn how to assess technical debt, calculate modernization ROI, and build a business case for leadership.
Planning a large-scale transformation?
→Read our Modernization Strategy framework. Covers phased migration, risk mitigation, and vendor selection criteria.
How we stay independent
→See our complete methodology: how we vet partners, refuse pay-to-play, and publish data others hide.
How We Stay Independent
How does Modernization Intel make money?
We're free for buyers. We earn referral fees from implementation partners after successful introductions. You never pay us directly, and our fees don't inflate partner rates—they come from the partner's existing sales budget.
How do you stay independent?
We refuse pay-to-play models, sponsored rankings, and vendor badges. Partners can't buy better placement. Our intelligence is based on documented project data, reference calls, and failure mode research—not who pays the most.
How do you vet partners?
We analyze 200+ implementation partners across cost structures ($500K-$5M project ranges), delivery timelines, technology specializations, and documented failure modes. We verify claims through reference checks and project post-mortems. See our full methodology at /about.
What makes you different from Gartner or Clutch?
We publish what others hide: real cost ranges, timeline bands, and failure modes. Gartner charges enterprises $50K+ for reports. Clutch sells premium placement to vendors. We're free for buyers and refuse pay-to-play rankings.
Why is this free for buyers?
Software procurement is broken. Buyers waste months on RFPs, get bait-and-switch pricing, and lack visibility into failure rates. We believe transparent intelligence should be accessible, not locked behind paywalls or corrupted by vendor payments.
What data do you publish?
For each modernization type, we publish: typical cost ranges, timeline estimates, common failure modes, technology-specific considerations, and partner fit criteria. We also document what partners refuse to disclose (red flags) and bait-and-switch tactics.
Do you work with all implementation partners?
No. We refuse partners who: demand pay-to-play placement, prohibit publishing cost ranges, won't provide references, or have patterns of bait-and-switch pricing. If a partner isn't in our network, we'll tell you why.
How current is your data?
We update cost ranges and partner capabilities quarterly. Migration guides reflect 2024-2025 technology stacks. When practices change (e.g., new AWS pricing, framework deprecations), we flag outdated sections and update within 30 days.