Launching Rate Calculator: Know Your Worth as a Freelance Developer
We built a free Chrome extension that helps freelance developers calculate their market rate based on tech stack, experience, and location.
Today I'm launching Rate Calculator — a free Chrome extension that helps freelance developers figure out what they should actually charge.
The Problem
Freelance developers systematically undercharge. I've seen it over and over:
- Senior React developer charging $30/hour because "that's what I started with"
- Backend engineer in Eastern Europe not knowing they could charge 2-3x more for US clients
- New freelancers picking random numbers and hoping for the best
The problem isn't skill. It's information. Most developers have no idea what the market actually pays for their specific combination of skills, experience, and location.
The Solution
Rate Calculator gives you market data in 10 seconds:

Select your:
- Tech stack — 50+ technologies from React to Rust to DevOps
- Experience level — Junior to Principal
- Location — 30+ countries with accurate regional adjustments
- Client location — because US clients pay differently than EU clients
Get instant results:
- Recommended hourly rate range
- Annual equivalent
- How you compare to market median
Why a Chrome Extension?
Because that's where freelancers work. You're on Upwork, Toptal, or a job board when you need this information. One click, instant answer.
No signup. No email required. No "premium features" locked behind a paywall.
Built on Real Data
Every rate in the calculator comes from:
- Aggregated data from major freelance platforms
- Industry salary surveys adjusted for freelance premiums
- Input from freelance developer communities
- Regular updates to reflect 2025 market conditions
This isn't guesswork. It's data.
What's Inside
The extension includes:
- 50+ tech stacks — Frontend, Backend, Mobile, DevOps, Data Science, and more
- 30+ countries — with accurate cost-of-living adjustments
- Experience multipliers — from Junior (0-2 years) to Principal (10+ years)
- Client location factor — adjust for where your clients are based
- Dark/Light mode — because developers have preferences
Free Forever
Rate Calculator is free. No trials. No premium tier. No catch.
Why? Because I've been that freelancer who didn't know their worth. I charged $25/hour when I should have charged $75. That's money I'll never get back.
If this tool helps even one developer negotiate a better rate, it's worth it.
Get It Now
Or try the web version on our site:
What's Next
This is v1. Here's what's coming:
- Rate history — track how rates change over time
- Proposal templates — professional templates with your calculated rate
- Negotiation tips — context-aware advice for rate discussions
- More platforms — Firefox extension, mobile app
Follow the Journey
I'm building AllKeep products in public. Follow along:
- Twitter: @Nefayran
- This blog for major updates
Have feedback? Found a bug? Want to suggest a feature? Reach out via contact.
Rate Calculator is part of AllKeep, a software company based in Tokyo building tools that actually work.

