Free Invoice Generators With No Sign-Up, Compared

The honest answer: "no sign-up" is where these tools start to differ, not where they end. Invoice-Generator.com, PlainInvoice and InvoiceQuick all give you a PDF without an account. Harvest's generator asks for a work email before it hands the invoice over. The real differences are where your client data sits, whether you can reopen last month's invoice, whether your data comes back out, and whether the tool knows anything about how developers bill. Below is a scorecard of five generators on eight criteria, including ours, with the rows we lose left in.

A disclosure before the table: this is the Billable blog, and Billable is one of the five. Read it knowing that. To keep the bias in check, every cell for another tool comes from that tool's own pages (its generator page, help page or FAQ) as they read in September 2026. Where a tool doesn't say, the cell says "not stated" instead of a guess. Tools change, so check anything that decides it for you.

What should a no-signup generator actually be judged on?

"Free" and "no sign-up" are table stakes. Nearly every generator in this space claims both. What separates them shows up the second time you invoice a client, or the first time a client asks you to resend something from March. These are the eight criteria that matter, and why:

PDF with no account and no email. The claim itself. Some tools let you build the invoice freely, then gate the download.
Where your invoice data sits. Your client's name, address and what you charged them. On your device, on their server, or only on their server if you opt in.
Save and reopen without an account. Can you reopen an invoice next month without re-typing it?
Import. Can line items come in from somewhere other than your keyboard?
Export. Can your data leave in a file you control, not just as PDFs?
Developer features. Anything shaped around how software work is actually billed.
Recurring billing. Monthly retainers are common. Who handles them, and how?
Tool branding on the free PDF. Whether the tool puts its own name on your invoice.

The scorecard

Criterion	Billable	Invoice-Generator.com	PlainInvoice	Harvest generator	InvoiceQuick
PDF with no account or email	Yes	Yes	Yes ("no account, no email, no credit card")	No, asks for a work email and account before releasing the invoice	Yes
Where invoice data sits	Your browser's localStorage only; never sent to our server	Your browser's local storage for downloads; their cloud if you use an account to send	Stored only if you create an account	In your Harvest account	Browser-based; entries may not survive a refresh
Save and reopen, no account	Yes, a Saved list with draft, sent and paid status	Yes, a History page	No, needs a free account	No	No
Import line items	Git log, CSV, and JSON files	Not stated	Not stated	Not stated	Not stated
Export your data	JSON per invoice free; every saved invoice as CSV plus JSON with Pro	Export all invoices to a spreadsheet	Not stated	Not stated	Not stated
Developer features	Git log import, hourly line items, a default hourly rate	A developer API for generating invoices from code	None stated	None stated	None stated
Recurring billing	No automatic sending; Pro adds duplicate-for-next-month and a monthly calendar reminder	Not part of the no-account flow	Listed as "coming soon"	Not part of the generator	One-off only; recurring needs their paid software
Tool branding on free PDF	A small "created with billable.dev" line; Pro removes it	Not stated	Not stated	Not stated	"No tool branding"

Two rows we lose outright, stated plainly. InvoiceQuick says its free invoices carry no tool branding, and Billable's free PDF carries a one-line footer credit. And no tool here sends recurring invoices automatically without an account, Billable included. If you need a system that emails a client every first of the month by itself, you need invoicing software, not a generator.

Where does your data go with each tool?

This is the row that deserves more attention than it gets. An invoice is a small bundle of sensitive data: your client's legal name and address, your rates, sometimes your bank details in the notes. "No sign-up" tells you nothing about where that bundle travels.

There are three patterns in this group:

Stays in your browser. Billable keeps everything in your browser's localStorage. There is no invoice database on our side at all; the only server-side records are Pro license keys, and the license service never sees invoice contents. Invoice-Generator.com's help page says downloaded invoices are auto-saved to your device's local storage and that it does not keep copies of downloaded invoices on its servers.
Stored only when you opt in. PlainInvoice says invoice data is only stored if you create an account. Its generator also offers a shareable link that lets anyone with it view your invoice as a web page, which by its nature means that invoice lives on their side once you use it.
Account is the price of the PDF. Harvest's generator is a front door to Harvest. You fill it in freely, then it asks for a work email and account creation to release the invoice. Nothing wrong with that as a trade, as long as you know it's the trade.

Two practical notes on the browser-storage model, because it has a real downside too. First, browser storage is "best-effort" by default: per MDN's explanation of storage quotas and eviction, it persists until the browser runs short of space or you delete the site's data yourself. Clearing your browsing data clears your invoices. Invoice-Generator.com's help page says the same thing about its own history. So keep the PDFs, and use export.

Second, don't take any tool's word for it, ours included. You can check in two minutes. Open the generator, open your browser's developer tools, and watch the Network panel in Chrome DevTools while you type a client name and add a line item. A tool that keeps data local shows no requests carrying your fields. A tool that processes the form on its server shows requests going out as you type. It's the most useful test in this whole post, and it takes less time than reading a privacy policy.

Which generators let you save and reuse invoices?

The first invoice is easy everywhere. The second one is where the gap opens. Reusing means your details are remembered, last month's invoice can be reopened, and the numbering carries on.

Billable remembers your "from" details, auto-numbers invoices, and keeps a Saved list where each invoice carries a draft, sent or paid status. You can re-import any invoice from a JSON file, which also means moving to a new laptop is a file copy.
Invoice-Generator.com has a History page for past invoices and a "Save Template" option so your customizations load next time. This is a real feature, and it's better than its reputation for being a single-shot form.
PlainInvoice offers saving, client management and cross-device history, but through a free account.
InvoiceQuick says plainly in its FAQ that entries may not be saved if you refresh or leave the page.
Harvest saves everything, inside a Harvest account.

Why this matters beyond convenience: invoices are tax records. The IRS guidance on how long to keep records says to keep records that support income until the period of limitations for that return runs out, which is three years in the common case and longer in others. A generator that forgets your invoice the moment you close the tab isn't wrong, but it makes your download folder the system of record. Whatever tool you pick, keep every PDF somewhere backed up, and if the tool offers a data export, run it on a schedule.

What do developers specifically need from a generator?

Generic generators are built for someone selling a product or a flat service. Developer billing looks different in three ways, and they shape which tool is worth your time.

The work record already exists. If you bill hourly, the honest description of what you did is sitting in your commit history. Billable's git log import takes the output of git log or git log --oneline, groups commits by day into line items, and lets you set the hours for each day before anything lands on the invoice. Commits are evidence of the work, not a count of hours, so the hours stay your call. The full workflow, including the manual method with no tool at all, is in turn your git log into an invoice, and the feature lives at git log to invoice.

Line items come from somewhere else. Time trackers, spreadsheets and scripts all produce rows. Billable imports CSV rows of description, quantity and rate, with quoted fields and an optional header handled. None of the other four state an import path on their generator pages.

Your data should be a file. Developers tend to want data they can diff, back up and move. Billable exports each invoice as JSON for free, and Pro exports every saved invoice at once as a CSV (one row per invoice) plus a full JSON backup. Invoice-Generator.com's spreadsheet export from History covers a similar need.

Invoice-Generator.com deserves credit on one developer point: it offers a developer API for generating invoices from code. If you're building invoicing into your own product rather than billing clients by hand, that's a different job, and an API is the right tool for it.

What Billable doesn't do, so you can rule it out quickly: it doesn't email invoices for you, it doesn't take card payments, and its currency list is six currencies (USD, EUR, GBP, CAD, AUD and INR). If you bill in Swiss francs or yen, Invoice-Generator.com's long currency list is the better fit. For a line-by-line checklist of what a developer invoice should carry in any tool, see what belongs on a software development invoice.

Which tool fits which person?

A short sorting guide, with no winner declared for everyone:

One invoice, today, never again. Any of them. InvoiceQuick or Invoice-Generator.com will get you a PDF fastest, and InvoiceQuick's free output carries no tool branding.
You want the tool to send the invoice and collect payment. Invoice-Generator.com with an account supports sending and online payments, and Harvest is a full time-tracking and invoicing product. Both mean an account, which is the right trade at that point.
You bill a few clients a month and don't want your client list on anyone's server. Billable or Invoice-Generator.com's browser-storage mode. Billable adds status tracking, file import and export, and developer-specific inputs.
You bill hourly from a repo. Billable, because the git log import turns your commit history into draft line items instead of a Friday afternoon of reconstruction.
You invoice with a team. PlainInvoice's account tier adds team members and roles. A browser-only tool is single-person by design.
You need automatic recurring invoices. None of these, in their no-account form. That's invoicing software territory.

Two other generators came close to this list and are worth knowing about. Portant's generator states that your details never leave your browser and that there's no watermark. Wise offers a no-signup generator that sits in front of its business account for international payments, useful if getting paid across borders is the actual problem.

FAQ

Are free invoice generators really free?

Mostly, yes, for the core job of producing a PDF. The cost shows up elsewhere: an email or account required before download, an upsell to paid software, ads on the page, or a credit line on your invoice. None of that is sinister; it's how free tools pay for themselves. The useful question is which of those trades you'd rather make.

Is it safe to put client data into one?

It depends on where the data goes, and you can check that yourself. Tools that keep invoices in your browser never hold a copy of your client list. Tools that store invoices on their servers are fine too, but then their security and data policies are part of your setup. Run the developer tools Network test above before you type a real client's details into anything.

Can I use these for recurring invoices?

Not automatically, in their no-account form. InvoiceQuick says its free tool handles one-off invoices only, and PlainInvoice lists recurring invoices as coming soon. Billable Pro covers the manual version: duplicate a saved invoice for next month with the dates advanced and a fresh number, and download a monthly calendar reminder. If you want invoices sent on a schedule without you, that's software with an account.

What's the catch with "free"?

Every free generator has one, and it's usually stated if you look. Ours: the free PDF carries a small "created with billable.dev" credit, invoices live in your browser so clearing site data clears them, and a few conveniences (branding, estimates, recurring helpers, per-client defaults, bulk export) are in Pro. The free tier keeps every feature it has today; Pro only adds.

Try the local-only row

Billable is the column in that table with local-only data and git log import. Generate your invoice free, no account and no server, or start from the free invoice template for developers. If you want your own branding, estimates and the recurring helpers, Billable Pro is $4 a month billed $24 every six months, or $79 once for life.