Browse categories
Explore
Fiverr Pro
English
$
USD
I will a custom web app or tracker as a single offline HTML file
Tracklyapp
About this gig
I build web apps that live in one single HTML file.
No server, no database, no account, no monthly fees. You open the file and it works on desktop, tablet or phone, online or offline. Your data stays on your device.
What you can order:
Trackers, planners, budgets, inventory, calculators, dashboards, logbooks, forms. If it collects data and shows it back to you, I can build it.
Recent builds:
- A garden planner with 20+ tracking sections, companion-planting conflict warnings and per-crop cost/profit charts
- A budget app with recurring transactions, 60+ currencies and automatic local backups
- A vehicle maintenance tracker with service calendar and statistics
Every project includes:
- One clean HTML file yours to keep and modify
- Works offline, no installation
- Mobile responsive
- JSON export/import so your data is never trapped
- Dark mode
Selling your app as a product? I can add an activation-code system so you can distribute it as a paid download. Ask me about it.
Before you order: message me with what you need. I'll tell you honestly if it's a good fit and what it will cost no obligation.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Tracklyapp
Tracklyapp
Single file web apps: trackers, calculators, dashboards
- FromRomania
- Member sinceJan 2020
- Avg. response time3 hours
Languages
Romanian, English
I build complete web apps that live in a single HTML file. No server, no account — open the file and it works, offline.
Recent builds: a garden planner with 20+ tracking sections and companion-planting warnings, a budget app with recurring transactions and auto-backup, a car maintenance tracker.
Every build ships with a user manual, and an activation-code system if you want to sell it.
4 years and 4,000+ orders selling digital products.
Message me with your idea and I'll tell you honestly if it's a good fit.
My Portfolio
FAQ
What exactly do I receive?
One HTML file. You open it in any browser and the app runs. No installation, no hosting, no account. The file is yours to keep, modify and distribute.
Does it work without internet?
Yes. Everything runs locally in your browser. After the first load you can use it fully offline, on desktop, tablet or phone.
Where is my data stored?
On your own device, in your browser's local storage. Nothing is sent anywhere. You can export a full JSON backup anytime and import it on another device.
Can I sell the app I order from you?
Yes, you own it. I can also add an activation-code system so you can distribute it as a paid download. Message me for details.
Can multiple people use it at the same time?
No. These apps are single-user and store data locally. If you need shared accounts or a live database, this is not the right service.
What do you need from me to start?
A short description of what you want to track or manage, and which sections you need. Sketches or screenshots of similar tools help a lot.
