From basic dilution to advanced molecular cloning — all calculators are browser-based, instant, and built by scientists for scientists.
LabPrepX works in your browser with no installation, no downloads, and no account required for basic tools.
Browse calculators by category — PCR, cloning, sequence analysis, or lab preparation. 5 tools are free with no login.
Type in your DNA amounts, volumes, concentrations, or sequence. Results update live as you type — no submit button needed.
Receive a complete reaction table, smart warnings for unusual values, and one-click copy for your lab notebook.
All results update instantly as you type. No page reload, no waiting, no submit button.
Contextual alerts for unusual inputs — low enzyme volume, glycerol overflow, insert size issues, and more.
One-click copy of your reaction table as formatted text, ready for lab notebooks or email.
Easy on the eyes during late-night lab sessions. Switch with one click, preference saved automatically.
All calculators work perfectly on mobile and tablet. Use at the bench with your phone.
Every tool includes a formula breakdown, SVG diagram, and step-by-step procedure for students.
5 tools always free, no account needed. Create a free account for 9 tools. Subscribe from ₹99/month to unlock all 14 + every upcoming tool.
| Feature | Guest | Free Account | Pro / Institution |
|---|---|---|---|
| Free Tools (5 tools) | ✓ 5 tools | ✓ | ✓ |
| Login-only Tools (PCR Setup, Tm, Buffer Prep, DNA→Protein) | 🔒 | ✓ 9 total | ✓ |
| Pro-only Tools (Gradient PCR, Codon Usage, + all Cloning) | 🔒 | 🔒 | ✓ 14 total |
| Upcoming Tools (Primer Efficiency + more) | 🔒 | 🔒 | ✓ Auto-unlocked |
| Formula Library | Limited Guest only | ✓ Full access | ✓ Full access |
| Lab Notebook | 🔒 | 10 experiments | ✓ Unlimited |
| PDF & CSV Export | 🔒 | ✓ | ✓ |
| Preparation Logs | 🔒 | ✓ | ✓ |
| Priority Support | 🔒 | 🔒 | ✓ |
| Price | Free | Free | From ₹99/month |
No credit card for free account · Cancel Pro anytime · Secure payments via Razorpay
Used in biotechnology labs, university courses, and research institutions.
"The PCR Reaction Setup calculator saved me so much time. I used to do these manually in Excel — now I just open LabPrepX on my phone at the bench."
"The ligation calculator is excellent. The molar ratio comparison table and glycerol percentage indicator are exactly what I needed for my cloning workflow."
"My students use the free GC content and reverse complement tools during practical sessions. The step-by-step explanations make it excellent for teaching."
Your data and calculations are protected at every layer.
Every line of code, every algorithm, every interface — crafted with purpose.
Join hundreds of students and researchers using LabPrepX every day.
Start with 5 free tools — upgrade instantly with a free account.