If you sell on WhatsApp or Instagram, you're a student trying to calculate your JAMB score, or you run a small business out of Lagos, Abuja, or anywhere in between — chances are you've paid for, signed up for, or waited around for a tool that should've just worked instantly.
Storkim has quietly built 261+ free tools that run right in your browser — nothing you type or upload ever leaves your device, there's no account required, and none of them cost a naira. Below are the 27 that matter most if you're running a hustle, studying for exams, or job hunting in Nigeria right now.
Running a business or reselling online
Nigerian sellers deal with problems generic "business tools" websites never bothered to solve — VAT that's actually 7.5%, PAYE bands that change, and delivery pricing that depends on zone and weight. These do:
- Nigerian VAT Calculator — Add or remove 7.5% VAT from any price in seconds, instead of doing the maths in your notes app.
- Nigerian Salary & PAYE Calculator — Go from gross to net pay with pension, NHF and the actual PAYE tax bands built in.
- CAC Registration Cost Calculator — Budget for registering a Business Name or Limited Company before you start the process.
- Nigerian Delivery & Shipping Cost Calculator — Work out what to actually charge for delivery by weight and zone, instead of guessing and eating the loss.
- Reseller Profit Calculator — See your real profit after fees, shipping and cost price — not just the number on the price tag.
- Nigerian Invoice, Proforma & Receipt Generator — Naira invoicing with VAT, your CAC number and bank details built in, ready to send.
- SKU / Product Code Generator — Stop guessing at product codes; generate consistent SKUs for your whole inventory in bulk.
- Return & Refund Policy Generator — A clear return policy for your store page, so customers know what to expect before they complain.
Students preparing for exams and admissions
- JAMB & Admission Aggregate Calculator https://storkim.com/tools/jamb-aggregate-calculator/ — Estimate your admission aggregate with adjustable weights for the school and course you want.
- WAEC & NECO Grade Calculator https://storkim.com/tools/waec-neco-grade-calculator/ — Score-to-grade lookup plus a 5-credit eligibility check, before results even drop.
- Nigerian CGPA & GPA Calculator https://storkim.com/tools/nigerian-cgpa-calculator/ — Work out your semester GPA and cumulative CGPA on either the 5.0 or 4.0 scale.
Job hunting
- CV / Resume Builder] https://storkim.com/tools/cv-builder/ — Build a polished resume with real templates and export it as a PDF, no design software needed.
- Cover Letter Generator https://storkim.com/tools/cover-letter-generator/ — Get a ready-to-edit draft in seconds instead of staring at a blank page the night before a deadline.
- Interview Question Practice] https://storkim.com/tools/interview-question-practice/ — Rehearse common behavioral and technical questions before the real thing.
Everyday money and life admin
- Split Bill Calculator https://storkim.com/tools/split-bill-calculator/ — Split a bill evenly (with tip) between any number of people — useful for that group hangout every single time.
- Loan / Mortgage Calculator https://storkim.com/tools/loan-calculator/ — See your monthly payment and total interest before you commit to anything.
- Currency Converter https://storkim.com/tools/currency-converter/ — 160+ currencies with daily-updated rates, handy for anyone paying or getting paid in dollars.
- Public Holiday Lookup https://storkim.com/tools/public-holiday-lookup/ — See every public holiday for Nigeria (or anywhere else) for the year ahead — great for planning delivery schedules or leave.
- Age Calculator https://storkim.com/tools/age-calculator/ and BMI Calculator https://storkim.com/tools/bmi-calculator/ — The two quick lookups everyone eventually needs and nobody wants to sign up for.
For anyone making content, editing images or writing code
These are the tools with the broadest appeal — the ones worth bookmarking even if you're not running a business:
- Password Generator https://storkim.com/tools/password-generator/ — Strong, random passwords with custom rules, generated locally.
- QR Code Generator https://storkim.com/tools/qr-code-generator/ — Turn any link, WiFi password or contact card into a scannable code.
- Background Remover https://storkim.com/tools/background-remover/ — Clean up product photos for your store listings, no design skills required.
- Image Compressor & Resizer https://storkim.com/tools/image-compressor/ — Shrink photo file sizes before uploading them anywhere slow.
- Merge PDF Files https://storkim.com/tools/pdf-merge/ — Combine multiple PDFs into one — for CVs, contracts, or school documents.
- JSON Formatter & Validator — Beautify and validate JSON with clear error messages, for the developers in the room.
- Markdown Live Preview Editor — Write in Markdown and see it rendered instantly, side by side.
Why these are actually free
There's no catch here — no "3 free uses then pay," no forced account creation, no file uploaded to a server somewhere. Everything runs directly in your browser, which means what you type stays on your device and the tool works exactly as fast as your phone or laptop does. That's the whole design philosophy behind all 261+ tools on the platform, not just the ones on this list.
There's more to Storkim than the tools
The free tools exist because Storkim is built for people buying, selling and doing business near them — the calculators and generators above are just the everyday utility layer. If you're already reaching for these tools to run your hustle, the next logical step is putting what you're selling in front of buyers nearby.
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