Seller kit
Return & Refund Policy Generator Kit
Write a clearer return policy without starting from a blank page.
Open kitLocal-first tools, seller kits, books, and browser games
Buck Builds
Practical digital products for people who would rather get the work done than wrestle with a giant system. Kits, utilities, games, and workflows are built in clear, useful versions and kept simple enough to inspect.
24
live products
2
featured games
What this is
Useful first, fancy later.
Seller kits
Templates, calculators, and checklists for small sellers who need clearer listings, pricing, refunds, shipping, and customer replies.
Open seller kitsFree utilities
Small tools on GitHub and Gumroad for renaming product photos, checking networks, cleaning storage, and removing boring repeat work.
Open utilitiesGames and books
Browser-playable projects, practical books, and creative products built to be easy to open, try, read, and share.
Open creative shelfLocal-first systems
Business workflows are designed around local files, simple dashboards, and human-readable records before bigger platforms get involved.
Open local-first systemsCatalog
Start with the lane that hurts today.
Seller kit
Bundle Pricing Planner Kit
Plan bundle pricing so grouped offers make sense before discounts eat the margin.
Open kitSeller kit
Custom Order Quote Builder Kit
Turn custom-order details into clearer quotes without starting from a blank message.
Open kitSeller kit
Restock Reorder Calculator Kit
Check reorder timing and restock quantities before inventory gets thin.
Open kitSeller kit
Customer Review Response Helper Kit
Draft calmer, clearer replies to customer reviews without overthinking every word.
Open kitSeller kit
One-Hour Gumroad Product Sprint Kit
Move a simple product idea from loose notes to a cleaner Gumroad-ready draft.
Open kitSeller kit
Product Listing Cleanup Kit
Turn messy product listings into sharper titles, bullets, and buyer-facing copy.
Open kitSeller kit
Marketplace Profit Calculator Kit
Check whether the item is actually worth selling after fees, shipping, and time.
Open kitSeller kit
Shipping Cost Sanity Checker Kit
Check whether shipping costs are quietly wrecking the sale before listing or quoting.
Open kitSeller kit
Marketplace Title & Tag Builder Kit
Build clearer marketplace titles and tags so buyers can find the item faster.
Open kitUtility
Bulk Serial Files Renamer
Rename Linux serial-number file batches so records and folders stop drifting apart.
Open Gumroad listingUtility
Bulk Product Photo Renamer for Linux
Rename batches of product photos on Linux for cleaner listings, folders, and repeat workflows.
Open Gumroad listingUtility
Bulk Product Photo Renamer for Mac Silicon
Rename batches of product photos on Apple Silicon Macs so listings stay easier to manage.
Open Mac versionUtility
Simple Network Health Checker for Linux
Run a basic Linux network check and get a practical report instead of a mystery.
Open Gumroad listingUtility
Slow Computer Rescue for Linux
Clean up storage and common slow-computer clutter with a simple Linux helper.
Open Gumroad listingUtility
Hook Architect Pro for Linux
Shape stronger hooks and angles for offers, posts, and product pages without a bloated marketing suite.
Open Gumroad listingFree repo
Gmail Report Notifier for Linux
Send simple Gmail report notifications from a Linux workflow without creating a heavy dashboard.
Open free repoFree repos
Network Diagnostics / IT Troubleshooter
Linux network troubleshooting helpers for turning connection problems into readable reports.
Free project
GroundTruth OS ISO
An Arch-based live environment for AI-assisted work, paired with the open Ground Truth method.
Open repoBrowser game
Stormlight Village
A small rainy repair adventure with 10 themed chapters, gentle tile-rotation puzzles, and no timers.
Browser game
Planetary Researcher
A text-based space research and journaling game about anomalies, exploration, and curiosity.
Play freeBook
Masterclass for Meetings
A short, practical book for making meetings clearer, more deliberate, and easier to execute.
Planner
Military-Inspired Planner 2026
A hardcover planner built around a 3-step system to prioritize, execute, and win the day.
Open hardcoverOperating method
Useful versions first, better versions next.
The company rule is simple: start with the real problem, ship something useful, listen to what people do with it, then make the next version clearer, stronger, and easier to use.
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01
Find the pain
Research starts with buyer language, repeated complaints, pricing clues, and visible demand.
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02
Ship a useful version
A checklist, calculator, template, game page, or small utility goes out while the idea is still easy to improve.
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03
Improve from response
Views, comments, downloads, ratings, sales, and support questions help decide what gets sharpened next.
Request a tool
Tell Buck Builds what is slowing your work down.
If a repeated task, messy workflow, file problem, or software lock-in keeps costing you time, send the plain version of the problem. Contact info is optional. If the problem fits, Buck Builds may turn it into a public Gumroad tool people can buy without making an account here.
Featured games
Stormlight Village and Planetary Researcher are free to play.
Stormlight Village is a rainy repair-puzzle adventure with 10 short chapters. Planetary Researcher is a text-based space research and journaling game. Both play in the browser and are ready to share.
Where to browse