Pricing calculators and generators for developers who bill from GitHub.
No signup required. Estimate your rate floor, spot revenue leakage, price retainers, or turn any PR into client-ready invoice language.
Freelance Developer Rate Calculator
Stop guessing your rate. Calculate a sustainable freelance developer hourly, day, and monthly rate from income goals, taxes, expenses, and real billable capacity. Free, no signup.
- Estimate an hourly floor that accounts for taxes, overhead, and utilization.
- See the matching day rate and baseline monthly revenue target.
- Use the output to price retainers, project work, and overages more confidently.
Underbilling and Revenue Leakage Calculator
How much revenue are you losing to forgotten PRs? Estimate the hidden cost of manual billing — forgotten work, invoice prep time, and admin overhead. Free calculator.
- Estimate monthly revenue lost to forgotten shipped work.
- Quantify manual invoice prep and billing-admin time in dollars.
- Compare the leak to Diffbill’s cost to frame payback clearly.
Developer Retainer Calculator
Stop underpricing retainers. Price a developer retainer that covers coordination overhead, response SLA, priority access, and overage multiplier. Free calculator.
- Translate your hourly floor into a practical monthly retainer.
- Bake coordination and response expectations into the quote.
- Set a clean included-hours cap and an overage rate that protects margin.
PR to Invoice Line Item Generator
Turn any PR into client-ready invoice language in seconds. Paste a pull request title, body, or public GitHub URL to generate professional line items. Free, no signup.
- Generate three client-facing line-item variants from the same PR context.
- Produce a safer redacted version when the original wording is too implementation-heavy.
- Use a public GitHub PR URL or paste the source text directly. No signup required.
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Comparisons and use-case guides
See how diffbill stacks up against other tools, or read how it fits your specific billing workflow.
Comparison
diffbill vs Harvest
Choose diffbill when your billing source of truth is shipped work in GitHub. Choose Harvest when your team still needs timesheets, hour approvals, and classic time-tracking workflows.
Comparison
diffbill vs Toggl Track
Choose diffbill if you want consultant invoices built from merged pull requests and outcome-focused descriptions. Choose Toggl when simplicity in timer tracking matters more than GitHub-native billing.
Comparison
diffbill vs Clockify
Choose diffbill when your goal is faster, clearer client invoices from GitHub activity. Choose Clockify when you need broad team time tracking across roles that work outside GitHub.
Use case
GitHub invoicing software for freelance developers
If you invoice clients based on shipped code, diffbill gives freelance developers a faster way to capture every piece of delivered work, explain its value in plain language, and send cleaner invoices.
Use case
Developer invoicing software for consultants
diffbill fits consultants whose delivery lives in GitHub. It turns scattered PRs and retainer work into clear invoice descriptions that clients approve without back-and-forth.
Use case
GitHub billing workflow for small dev agencies
diffbill helps small dev agencies standardize billing across accounts, eliminate the admin time spent rewriting technical updates, and deliver invoices that prove the value of every sprint.