Free, local-first utilities
Practical tools for independent work.
Choose one clear task. Your inputs stay in your browser unless a tool explicitly says otherwise.
Price, fees & sales planning
Check what remains after a sale or what a specific selling day needs to break even.
Marketplace fee calculator
Compare estimated Fiverr, Upwork, Gumroad, and Ko-fi take-home pay.
Open toolCreator platform fee dataset
Download official-source fee and payout rules as versioned CSV or JSON.
Open toolEtsy price-to-profit calculator
Set a product price against costs, shipping, fees, and a profit target.
Open toolKDP paperback royalty estimator
Check US paperback royalties using the printing cost KDP currently shows.
Open toolCraft fair break-even calculator
Turn stall costs, unit costs, and your time target into a sales threshold.
Open toolAustralian GST calculator
Add 10% GST to a quote or split GST from an Australian dollar total.
Open toolUK holiday entitlement calculator
Plan fixed-workday statutory leave for a full or partial UK leave year.
Open toolSalary to hourly pay converter
Compare a gross annual salary and hourly rate using your own paid schedule.
Open tool2026 401(k) contribution planner
Pace your remaining 2026 employee 401(k) deferrals across upcoming paychecks.
Open tool2026 estimated tax payment tracker
Keep your own expected and paid amounts alongside four published 2026 estimated-tax due dates.
Open toolPublishing & creator workflow
Prepare publishable assets and practical hand-off information without uploading your files.
App Store screenshot checker
Check a local iPhone screenshot set before App Store Connect upload.
Open toolCreator media kit builder
Make a one-page media kit you can copy, download, or print.
Open toolCreator disclosure draft builder
Draft a clear relationship disclosure and placement reminder before you publish.
Open toolCC attribution builder
Draft a clear Creative Commons TASL attribution in text or HTML.
Open toolRecipe schema generator
Create a copyable Recipe JSON-LD draft from your own recipe details.
Open toolFreelance project scope builder
Write a clear project scope note with deliverables, exclusions, timing, and inputs.
Open toolEtsy listing preflight
Check an Etsy listing title and tags against current count and character limits.
Open toolPrint resolution calculator
Plan image pixels, physical print size, or effective PPI before you send a file to print.
Open toolBaking pan size converter
Scale a recipe by comparing round, square, or rectangular pan area.
Open toolPaint coverage calculator
Estimate paint volume and whole cans from room dimensions and your product-label coverage.
Open toolCoffee-to-water ratio calculator
Calculate coffee and water weights from a coffee-to-water ratio, starting with either amount.
Open toolEnglish readability checker
Check an English draft locally with Flesch Reading Ease and Flesch–Kincaid estimates.
Open toolVideo upload time calculator
Estimate an export's file size and transfer time from its bitrate and your upload speed.
Open toolYouTube chapters validator
Check and format a pasted YouTube chapter list before you add it to a video description.
Open toolLinks, records & shipping paperwork
Keep routine independent-work administration and shipment checks clearer and easier to review.
UTM link builder
Create a tagged campaign link while preserving its original query parameters.
Open toolUK mileage log builder
Keep a local trip log and export a simple record for your own review.
Open toolSelf-employed cashbook builder
Record actual income and expenses, check the cash movement, and download a simple CSV.
Open toolUK late payment interest calculator
Estimate one late B2B payment period using your confirmed rate and dates.
Open toolFiverr Gig image check
Check and resize a local Gig image against Fiverr’s current file rules.
Open toolPacking slip builder
Make a price-free packing checklist to print and include with one order.
Open toolDimensional weight calculator
Compare actual and dimensional package weight before a selected UPS or USPS quote.
Open tooliCalendar .ics file generator
Create and download one local timed calendar event file to import or share.
Open toolvCard contact file generator
Create and download one local .vcf contact file to import or share.
Open toolDiscord timestamp generator
Create copyable Discord time markup that renders in every reader's local timezone.
Open toolReturn window deadline calculator
Turn the calendar-day return window in a seller's written policy into a local planning date.
Open toolShared bill split calculator
Split one already-agreed shared bill by equal or custom weights, entirely locally.
Open toolWeb quality & visibility
Check a small but important publishing detail before a page goes live.
Open Graph meta tag builder
Create a copyable HTML and Open Graph head-tag block for one page.
Open toolWCAG contrast checker
Check an opaque foreground and background color pair against common WCAG contrast thresholds.
Open toolRobots.txt generator
Build a simple robots.txt draft with optional path rules and a sitemap reference.
Open toolSRI hash generator
Create local integrity metadata for a script or stylesheet file you control.
Open toolHome & outdoor planning
Turn a physical measurement into a clear shopping or setup starting point.
Garden timing planning
Turn a confirmed planting date and packet timing into a clear local calendar note.
Live performance planning
Prepare a concise running order for rehearsal or one live set.
Cycling setup
Compare a measured drivetrain setup before you swap parts or head out.
Ceramics studio planning
Turn a same-studio test measurement into a practical size note before you make one piece.
Pet-care operations
Protect a solo service day before you accept another local visit.
Laser-cut fit planning
Turn a physical test cut into one clear drawing dimension before a fabrication run.
Bookbinding case planning
Turn a finished book-block measurement into a clear cutting note before you commit board or covering material.
Cross-stitch layout planning
Find a balanced chart start point on fabric you already have before you mark the grid.