Time tracking + invoicing for freelancers

Track hours, send invoices, get paid faster.

Billflow connects your timer to your invoice in one click — built for freelancers who bill by the hour. No spreadsheets. No stitching tools together.

Start free See how it works

No credit card required. Cancel anytime.

Billflow September 2025

Active Timers

Acme Corp — Homepage redesign

Web design · Started 9:14 AM

2:34:07 Running

TechStart Inc — API integration

Development · Yesterday

5:10:00 Logged

Billable this month

38.5 hrs · $5,775

Invoice #042 paid

$3,200.00

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The problem

Most freelancers use three tools to do one job.

A timer app. A spreadsheet. An invoice template. You copy hours into cells, calculate totals, paste into a PDF, and send — every single month. There is a better way.

The old way

  • Run a timer app (Toggl, Clockify)
  • Export hours to a spreadsheet
  • Calculate totals manually
  • Copy numbers into an invoice template
  • Format, export, send
  • Chase payment separately

~45 min every month per client

Harvest / FreshBooks

  • Powerful — built for teams of 10+
  • Invoicing buried in accounting features
  • Subscription pricing for features you skip
  • Integrations required for basic flows
  • Slow onboarding, steep learning curve
  • Overkill if you just bill hourly

Designed for teams, not solo freelancers

Billflow

  • Start a timer in one click
  • Hours logged automatically by project
  • One-click invoice from your tracked hours
  • Professional invoice PDF, ready to send
  • Built-in payment link (Stripe)
  • Set up in under 5 minutes

End-of-month invoicing: under 2 minutes

Time tracking

Start a timer. Billflow handles the rest.

One-click timers per project. Add a description, hit go. Billflow logs every second against the right client — no manual entry, no forgotten hours at the end of the week.

  • Track multiple projects simultaneously
  • Auto-round to nearest 6 or 15 minutes
  • Edit or add time manually when needed

Today — Tuesday, Sep 9

Acme Corp

Homepage redesign

2:34:07 Live

TechStart Inc

API integration

5:10:00 Done

GrowthLab

Dashboard wireframes

1:45:30 Done
Today total 9:29:37 · $1,296

Invoice

#INV-042

Sent

Bill to

Acme Corp

billing@acmecorp.com

Due date

Sep 30, 2025

Net 21

DescriptionHoursAmount
Homepage redesign 18.5h $2,775
Brand consultation 4.0h $600
Revision round 2 2.5h $375
Total due $3,750.00

One-click invoicing

From tracked hours to sent invoice in under two minutes.

At the end of the month, Billflow pulls every billable hour into a clean, professional invoice. Review, adjust, send. That is it — no reformatting, no copy-pasting.

  • Auto-populated line items from your timer
  • Branded PDF invoice, yours to send
  • Send directly from Billflow — no email client needed

Get paid

A payment link in every invoice. No extra setup.

Clients pay online via card or bank transfer. Billflow notifies you the moment money lands. No Stripe dashboard to navigate, no separate payment link to create.

  • Stripe-powered card and bank transfer
  • Instant notification when paid
  • Revenue dashboard shows what is pending vs paid

Revenue — Sep 2025

Updated now

$9,200

Paid

$3,750

Pending

$0

Overdue

Acme Corp

#INV-041 · Sep 2

$5,775 Paid

TechStart Inc

#INV-042 · Sep 9

$3,750 Awaiting

GrowthLab

#INV-040 · Aug 28

$3,425 Paid

Pricing

Simple pricing. No surprises.

Start free and upgrade when you need more invoices. No team seats to buy, no feature-gating the basics.

Solo — Free

$0 /month

Forever free. No credit card needed.

  • Unlimited time tracking
  • Up to 3 active clients
  • 5 invoices per month
  • PDF invoice export
  • Basic reporting
Start free

Pro

Most popular
$12 /month

Billed monthly. Cancel anytime.

  • Everything in Solo
  • Unlimited clients
  • Unlimited invoices
  • Stripe payment links
  • Invoice reminders
  • Revenue analytics
  • Custom invoice branding
Start free — upgrade when ready

14-day Pro trial included

Questions? Read the FAQ or email us.

FAQ

Common questions

Is Billflow really free to start?
Yes — the Solo plan is free forever with no credit card required. You get unlimited time tracking, up to 3 active clients, and 5 invoices per month. Upgrade to Pro when you need more.
How does the one-click invoicing work?
When you are ready to invoice a client, Billflow pulls every logged hour for that client into a draft invoice automatically. You review the line items, adjust if needed, and click Send. That is it.
Do I need a Stripe account?
Only on the Pro plan, and only if you want clients to pay online via the payment link. Stripe setup takes about 2 minutes. On the Solo plan you can still send PDF invoices and receive payment however you like.
Can I track time across multiple projects for the same client?
Yes. You can create any number of projects per client. Each project has its own timer, and when you invoice that client, Billflow groups the hours by project in the invoice line items.
What if I already use Toggl or Harvest?
You can import your existing time entries via CSV. Most freelancers find they can migrate in under 10 minutes and set up in Billflow the same afternoon.

Stop losing hours to invoicing busywork.

Join thousands of freelance developers and designers who send invoices in two minutes instead of two hours.

Start free — no credit card
Free plan, forever Set up in 5 minutes No spreadsheets required