The dev tools you reach for daily — now with zero data risk
Diff Checker, SQL Formatter, data converters, and every Pro tool we build next. Same client-side privacy as our free tools. Pay once, own it forever.
No subscription. No recurring fees. Ever.
$0.41/tool. Less than a single month of any SaaS alternative.
- ✓Diff Checker — spot config changes before they hit production
- ✓SQL Formatter — make inherited queries readable in seconds
- ✓CSV to JSON — transform spreadsheet exports for your API
- ✓JSON to CSV — pull API data into spreadsheets your PM can read
- ✓JSON to TypeScript — generate type-safe interfaces from any API response
- ✓Code Minifier — shrink HTML, CSS, and JS before deploy
- ✓Every future Pro tool we build — included at no extra cost
- ✓Priority feature requests — tell us what to build next
Secure payment via Stripe · Instant delivery · 30-day money-back guarantee
A Septim Labs product
How developers use Pro tools
Debugging a production issue at 11pm
You need to diff two API responses to find what changed. You can't paste production data into a random site. Open Diff Checker, paste both payloads, see the difference. Your data stays on your laptop.
Onboarding onto a legacy codebase
The SQL queries are 200 lines of unformatted chaos. Paste them into SQL Formatter, get readable output in one click. No VS Code extension to install, no CLI tool to configure.
Converting data for a client deliverable
Your API returns JSON but your client needs a CSV. Or your client sends a CSV and your app needs JSON. Two tools, instant conversion, no data ever leaves your browser.
Free vs Pro
Built for developers who handle real data
Frequently Asked Questions
Why should I pay when free alternatives exist?
Most free tools send your data to their servers for processing. Septim Forge Pro tools run entirely in your browser — your code, your JWTs, your SQL queries never leave your machine. For $9 one-time, you get that guarantee across every tool, plus every future Pro tool we build.
Is this really a one-time payment?
Yes. Pay $9 once and get lifetime access to all current and future Pro tools. No subscriptions, no renewals, no hidden fees. We hate surprise charges as much as you do.
What if I'm not satisfied?
We offer a 30-day money-back guarantee, no questions asked. If Pro doesn't deliver value, you get a full refund.
How do I access Pro tools after purchase?
You'll receive a license key instantly after purchase. Enter it on any Pro tool page to unlock it. Works across all your devices and browsers.
Will the price stay at $9?
We plan to raise the price as we add more Pro tools. Everyone who buys at the current price keeps lifetime access to everything we ship, regardless of future pricing.
Is my data safe?
All tools — free and Pro — process data entirely in your browser using JavaScript. Nothing is ever sent to our servers. We literally cannot see what you paste into our tools.
Your next tool search ends here
22 tools. Client-side processing. No subscriptions. Get Pro and never worry about where your data goes again.
Get Lifetime Pro — $9Price increases when we add the next batch of Pro tools.