Stop Juggling Tools. Run Your Business from One Place.
Invoices, documents, tasks, contacts, and finances — finally in a single workspace. Built for freelancers who are tired of paying for 5 different apps.
Spaces
Business
Good morning, Alex
Balance
$12,450
Income
+$4,200
Expenses
-$1,850
Recent
500+
Freelancers Joined
And growing every day
10k+
Invoices Created
Professional PDFs in seconds
$0
During Beta
Every feature, no restrictions
4.9/5
User Rating
From early adopters
Everything You Need to Run Your Business
Stop paying for Notion + FreshBooks + Trello + spreadsheets. Second Brain replaces them all.
Documents & Notes
A powerful rich text editor with spaces, pages, and hierarchical organization. Write, plan, and organize your knowledge like a personal wiki.
Task Management
Kanban-style task boards with priorities, due dates, and sections. Break down projects and track progress without leaving your workspace.
Professional Invoicing
Create professional invoices with line items, tax calculations, and PDF export. Track invoice status from draft to paid at a glance.
Contact Management
Manage your business contacts with tax IDs, addresses, and direct links to invoices. Your client relationships, organized.
Financial Tracking
Record and categorize transactions, attach supporting documents, and keep a clear picture of your business finances.
Company Profile
Set up your business details once. Your company info flows automatically into invoices, keeping everything consistent.
Write and Organize Like Never Before
Create rich documents with our block-based editor. Organize them into spaces and pages with nested hierarchies. Whether it is meeting notes, project plans, or a personal knowledge base — everything stays structured and searchable.
- Block-based rich text editor
- Spaces and nested page hierarchy
- Quick drafts for capturing ideas on the fly
Website Redesign Brief
The goal of this project is to modernize the client's website with a focus on mobile responsiveness and conversion optimization.
Key Deliverables
- ✓Homepage wireframe
- ✓Brand color palette
- Responsive mockups (3 breakpoints)
- Final handoff to development
Timeline
Phase 1 complete by March 15. Final delivery by April 1.
Invoicing That Means Business
Generate professional invoices in seconds. Add line items with tax rates, track status from draft to paid, and export as PDF. Link invoices directly to your contacts for a complete business picture.
- Automatic tax calculations
- PDF and XML export
- Status tracking and contact linking
INV-2026-012
Issued Feb 10, 2026
Bill to
Acme Design Studio
hello@acmedesign.com
Tasks That Fit Your Workflow
Organize work with Kanban-style boards, custom sections, and priority levels. Every space can have its own task board, so project tasks stay with project documents.
- Kanban boards per space
- Priorities and due dates
- Inline task creation
Write blog post
Update portfolio
Client homepage
Invoice #013
Logo design
Send proposal
Up and Running in Minutes
No complex setup. No learning curve. Just sign up and start working.
Create Your Account
Sign up for free in seconds. No credit card needed, no trial limits.
Set Up Your Workspace
Create spaces for your projects, add contacts, and configure your company profile.
Start Being Productive
Write documents, manage tasks, send invoices, and track finances — all from one dashboard.
Loved by Freelancers Who Switched
Real feedback from freelancers and small business owners using Second Brain every day.
“Replaced Notion + FreshBooks + Trello with one tool. I write project briefs, send invoices, and track tasks all in the same workspace. Saves me 5+ hours a week.”
Alex Moretti
Brand Designer at Studio Moretti
“The PDF invoices look more professional than what I was making in Word. Automatic tax calculations, contact linking, status tracking — and it took me 2 minutes to set up.”
Sarah Khoury
Owner, Khoury Digital Marketing
“I went from $0 to my first invoice in under 10 minutes. Company profile, contact, line items, PDF export — done. This is what freelancer software should feel like.”
Daniel Reeves
Independent IT Consultant
“The finance dashboard finally shows me where my money actually goes. I spotted a client who owed me $3,200 that I completely forgot about. Paid for itself on day one.”
Priya Thakur
Freelance Marketing Strategist
“Just went solo after 8 years in agencies. Second Brain gave me professional invoices, organized client spaces, and a Kanban board — without the $50/month stack of tools.”
Marcus Lindqvist
Full-Stack Developer
“I used the hourly rate calculator before even signing up. Then I created an account, set up my profile, and sent my first invoice to a client — all in one session. Brilliant onboarding.”
Jana Weber
Copywriter & Content Strategist
Simple, Transparent Pricing
We are in beta and everything is free. Seriously.
Early Adopter
Beta- Unlimited documents & spaces
- Unlimited task boards
- Unlimited invoices
- Contact management
- Financial tracking
- Company profile
- Dark mode
- All future features during beta
No credit card required. Early adopters get special pricing when paid plans launch.
Free Tools — No Signup Required
Useful calculators built for freelancers and small business owners. Use them for free, anytime.
Your data is safe with us
We take security and privacy seriously — so you can focus on your business.
Encrypted & Secure
All data is encrypted in transit and at rest. Secure authentication with HttpOnly cookies and token rotation.
GDPR Compliant
Your data stays yours. We follow EU privacy regulations and never sell your information to third parties.
Export Anytime
Download your invoices as PDF. Your data is never locked in — export everything whenever you want.
Always Available
Built on modern infrastructure for fast, reliable access. Your workspace is ready when you are.
Frequently Asked Questions
Everything you need to know about Second Brain.
Yes! During our beta phase, every feature is completely free with no limits. No credit card required, no trial period. When we eventually introduce paid plans, beta users will receive special early-adopter pricing.
Second Brain is built for freelancers, solo entrepreneurs, and small business owners who need to manage documents, tasks, invoices, and finances without paying for five different tools.
Absolutely. You can create professional invoices with line items and tax rates, export them as PDF or XML, and track their status from draft to paid. Link invoices directly to your contacts for a complete overview. Note that Second Brain is not a payment processor — it helps you create and manage invoices, not collect payments.
Security is a top priority. We use encrypted connections, secure authentication with HttpOnly cookies, and follow industry best practices for data protection. Your data belongs to you.
We will introduce paid plans with transparent pricing. As a beta user, you will be grandfathered in with special early-adopter pricing. We will always give plenty of notice before any changes.
Yes. Invoices can be exported as PDF. We are working on comprehensive data export options to ensure you are never locked in.
And We're Just Getting Started
Here's what's on the roadmap.
AI Assistant
Smart writing suggestions, auto-categorization, and AI-powered search across your workspace.
Team Collaboration
Share spaces, assign tasks, and work together in real-time with your team.
Calendar & Scheduling
Visualize deadlines, schedule meetings, and sync with your favorite calendar apps.
Integrations
Connect with the tools you already use — Stripe, Google Workspace, Slack, and more.
Stay in the Loop
Get tips for freelancers, product updates, and early access to new features. No spam, unsubscribe anytime.
Replace 5 Tools with One Workspace
Freelancers are switching to Second Brain to manage documents, invoices, tasks, contacts, and finances — all in one place. Join them for free.