Slipstrim — AI Invoice Software for Freelancers & Agencies

Slipstrim is an all-in-one AI business management platform for freelancers, agencies, and small businesses. It replaces the need for separate invoicing software, CRM, analytics, and automation tools — bringing invoicing, client management, stock management, travel orders, AI agents, revenue analytics, calendar, and bank integration into a single application.

What is Slipstrim?

Slipstrim is a complete business operating system for independent professionals and growing agencies. It is not just invoicing software — it is the full stack of tools a modern freelancer or agency needs to run their business: AI invoice creation in under 60 seconds, client CRM, stock and inventory tracking, travel order management, AI business agents, revenue analytics, automated payment reminders, and bank integration. Available in English, Slovenian, German, and Croatian.

Platform Modules

Who is Slipstrim for?

How to Create an Invoice with Slipstrim (AI-Powered, Under 60 Seconds)

  1. Select a client from the built-in CRM (or create a new one in seconds).
  2. Describe your work in plain text — for example: "Website redesign 40 hours at €120, plus monthly hosting retainer €200".
  3. AI extracts line items — service names, quantities, units (hr, m², lot, pcs, kg…), and prices are populated automatically.
  4. Review and brand — apply your logo, brand colour, set payment terms and due date.
  5. Export as PDF — a professional invoice with SEPA EPC QR code is ready instantly.
  6. Optionally automate — set up a payment reminder schedule for the invoice.

Pricing

Free plan available. No credit card required.

Frequently Asked Questions

What is Slipstrim?
Slipstrim is an all-in-one AI business platform for freelancers, agencies, and small businesses. It combines invoicing, proforma invoices, CRM, stock management, travel orders, AI business agents, an AI assistant, revenue analytics, automated payment reminders, SEPA EPC QR payments, calendar, and bank integration — all in a single web application.
How does AI invoice generation work?
Slipstrim's AI invoice generator reads a plain-text description of your project and automatically extracts service names, quantities, units, and prices into clean invoice line items. For example, type "website redesign 40 hours at €120, plus monthly hosting €200" and the AI creates two properly formatted line items instantly. Powered by Google Gemini and Claude.
Is Slipstrim suitable for freelancers?
Yes. Slipstrim was built specifically for freelancers and solo operators. The Starter plan (€12/month) covers 50 invoices per month, 10 clients, PDF export, SEPA QR payments, and proforma invoices — everything a freelancer needs without paying for features designed for large accounting teams.
What is an EPC QR code on an invoice and how does it work?
An EPC QR code (also called a SEPA QR code) is a standardised QR code on a European invoice that encodes the payee's IBAN, SWIFT/BIC, invoice amount, and reference number. When a client scans it with any EU banking app, all payment details are pre-filled automatically — eliminating manual entry errors and speeding up payment. Slipstrim generates a compliant EPC QR code on every invoice when you add your IBAN in Settings.
How does Slipstrim compare to FreshBooks, QuickBooks, or Wave?
Slipstrim is an AI-first operations platform, not an accounting suite. Key differences: (1) AI agents and AI assistant built into the platform; (2) AI line-item extraction from plain text in under 30 seconds; (3) native SEPA EPC QR support for the European market; (4) built-in stock management, travel orders, and CRM that accounting tools don't include; (5) lower price starting at €12/month; (6) designed for day-to-day business operations, not annual tax filing.
Is the free plan really free?
Yes. No credit card required. Sign up and start using Slipstrim immediately — upgrade to a paid plan only when you need more.
Can I cancel my subscription anytime?
Yes. Cancel from Settings at any time with no penalty. Your access continues until the end of the current billing period.

By the numbers

Reviews & recognition

Slipstrim is listed and reviewed on G2 and Capterra. Also on Product Hunt and LinkedIn.

Start free at slipstrim.io — no credit card required.