# Brinlo > Auto-repair software for owners who work on cars. ## Pages - [Brinlo](https://usebrinlo.com/index.md): Write estimates, get customer approval, track jobs, and send invoices in one place. Auto repair software for independent shop owners. - [Brinlo blog](https://usebrinlo.com/blog/index.md): Notes on estimates, repair work, and running the counter. Read the Brinlo blog. - [Auto repair shop profit margin: calculate your own](https://usebrinlo.com/blog/auto-repair-shop-profit-margin/index.md): Calculate your auto repair shop profit margin with a worked example and worksheet. Separate parts markup, owner pay, operating profit, taxes, and cash. - [Effective labor rate: formula and worked calculation](https://usebrinlo.com/blog/effective-labor-rate/index.md): Calculate effective labor rate from net labor sales and sold hours. Check discounts, package prices, credits, and weighted totals with a worked shop worksheet. - [Parts markup and pricing matrices for repair shops](https://usebrinlo.com/blog/parts-markup-matrix/index.md): Test a parts markup matrix with a checked worksheet. Review your actual parts mix, cost-band boundaries, discounts, supplier costs, returns, and cores. - [How to run an auto repair shop day to day](https://usebrinlo.com/blog/run-auto-repair-shop/index.md): Run your shop day to day with a clear job list, approval and parts checks, customer updates, handoffs, and a checklist for opening, pickup, and closing. - [Pricing and shop numbers](https://usebrinlo.com/blog/topics/pricing-and-shop-numbers/index.md): Parts pricing, labor rates, and shop calculations. - [Shop operations](https://usebrinlo.com/blog/topics/shop-operations/index.md): Repair records, daily work, and customer updates. - [Auto repair software features](https://usebrinlo.com/features/index.md): Explore Brinlo's estimates, repair orders, vehicle inspections, shop calendar, and invoices. Keep the repair's work, decisions, and payments together. - [Auto repair estimate software](https://usebrinlo.com/features/estimates/index.md): Write auto repair estimates with parts and labor. Let customers approve each job, keep an approval record, and turn approved work into an invoice. - [Digital vehicle inspection software](https://usebrinlo.com/features/inspections/index.md): Record vehicle inspection findings with photos, notes, and checklist status. Turn findings into estimate items and send the work for customer approval. - [Auto repair invoice software](https://usebrinlo.com/features/invoices/index.md): Turn approved repair work into an invoice without retyping. Record deposits and partial payments, see the remaining balance, and provide receipts. - [Auto repair orders & job tracking](https://usebrinlo.com/features/repair-orders/index.md): Keep approved work, technician assignments, due dates, and job status together. Track repairs and keep findings, messages, and replies with the job. - [Auto repair shop calendar](https://usebrinlo.com/features/shop-calendar/index.md): Manage shop appointments in an internal calendar connected to jobs. Keep the appointment with the repair and track assignments and job status. - [Auto repair estimate template](https://usebrinlo.com/resources/estimate-template/index.md): Build a clear itemized estimate with customer, vehicle, parts, labor, and approval details. Fill it in, then print it or save it as a PDF. - [General vehicle inspection checklist](https://usebrinlo.com/resources/inspection-checklist/index.md): Check common vehicle systems, mark each finding, and leave a clear note for the estimate. Built for independent general repair shops. - [Mechanic invoice template](https://usebrinlo.com/resources/invoice-template/index.md): Record completed work, parts, labor, payments, and the balance due on one clear auto repair invoice. - [Parts markup calculator](https://usebrinlo.com/resources/parts-markup-calculator/index.md): Enter a part cost and choose markup or target margin. See the selling price, gross profit, markup, and margin without mixing up the two percentages. - [Auto repair order template](https://usebrinlo.com/resources/repair-order-template/index.md): Keep the customer request, assigned work, technician notes, parts, and approval record together while the vehicle is in the shop.