35 free tools
No signup, no email gate. Every tool does one job in your browser and gets out of the way. Grouped by job-to-be-done, tagged so you can scan. If you like how they think, you'll like Kahoona.
Ecommerce / Shopify 9
Bulk Image Resizer
Plan and prep bulk image resizing for Shopify, Amazon, and Etsy product catalogs.
CSV Product Generator
Generate Shopify-ready product CSV rows from a few structured fields.
CSV Bulk Fixer
Normalize headers, spacing, capitalization, blank rows, and duplicates in messy CSVs.
Product Description Generator
Benefit-led product descriptions from features, audience, tone, and objections.
Shopify SEO Audit Checklist
A prioritized SEO checklist for collections, products, speed, schema, and internal links.
SKU Generator
Consistent SKUs from brand, category, color, size, material, and sequence rules.
Barcode Label Copy Generator
Clean label copy for barcodes, shelf tags, bins, and fulfillment workflows.
Discount Margin Calculator
Check whether a discount still leaves margin after COGS, fees, and shipping.
Seller Fee Calculator
Itemized Etsy and PayPal fees (2026 rates) — exactly what you keep from each sale.
Marketing & Growth 5
QR Code Generator
QR-ready payload text and UTM-tagged links for flyers, packaging, menus, and inserts.
UTM Builder
Clean campaign URLs for ads, newsletters, influencers, and partner campaigns.
Landing Page Copy Generator
Hero copy, proof points, objection handlers, and CTA variants.
Email Subject Line Generator
Subject lines by offer, audience, urgency, curiosity, and clarity angle.
Content Calendar Generator
Turn one theme into a 30-day content calendar with channels, hooks, and CTAs.
SEO 2
Business Ops & Finance 8
Invoice Generator
A clean invoice in seconds — line items, tax, notes, print to PDF.
Invoice Email Generator
Professional invoice and payment reminder emails without sounding stiff.
Freelance Rate Calculator
Work backwards from the salary you want to the hourly rate you need.
Stripe Fee Calculator
See Stripe's fee and your real net payout — or what to charge to net a target amount.
SaaS ROI Calculator
Model whether a software tool pays for itself from seat cost and time saved.
OKR Generator
Turn a vague company goal into objectives, key results, and weekly check-ins.
SOP Generator
A repeatable operating procedure template for recurring business work.
Job Description Generator
Clear role descriptions with outcomes, responsibilities, and a scorecard.
Meetings & Team Productivity 8
Meeting Agenda Generator
Decision-ready agendas with goals, owners, timeboxes, and follow-ups.
Meeting Cost Calculator
Attendees × length × salary = the real price of that recurring sync.
Meeting Minutes Generator
Rough notes into decisions, action items, owners, deadlines, and risks.
Async Standup Generator
A formatted standup message you can paste straight into Slack or Discord.
Standup Cost Calculator
The real annual cost of your daily sync. See the number, then decide.
Sprint Retro Generator
Went well / didn't / try next — a structured retro without the meeting.
PR Review Checklist
An opinionated, copy-paste checklist for thorough pull request reviews.
Priority Matrix
Rank work by impact, effort, and confidence so the team knows what's first.
Developer & Offline 3
Invoice Ledger
Branded invoices with logo, accent color, and six themes — plus a localStorage ledger with CSV export/import.
Converter Suite
23 offline converters: Base64, hex, binary, bases, Roman numerals, colors, timestamps, JSON, checksums.
Media Converter
MP4 to GIF, batch PNG/JPG/WebP/AVIF conversion, and MP3/WAV/OGG/M4A audio — 100% in-browser, files never leave your device.