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English
$
USD
I will build a custom web application to process your data files
Ole Kristian ZM
About this gig
Do you need a custom web application that can upload, process and export data files?
I build simple, clean and reliable web tools tailored to your exact workflow.
Your application can include features such as:
upload one or multiple files (CSV, Excel, JSON, text)
apply custom processing rules based on your needs
clean, filter, merge or extract data
display results directly in the browser
export processed data to new files
(Standard/Premium) connect to APIs, FTP or external databases
I focus on practical, lightweight and userfriendly solutions no unnecessary complexity, no heavy frameworks, just a clean tool that does exactly what you need.
This gig is ideal for small businesses, internal tools, automation tasks, research workflows or anyone who needs a custom dataprocessing solution on the web.
Please contact me before ordering so I can confirm your requirements and recommend the right package.
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 Ole Kristian ZM
Ole Kristian ZM
Web developer
- FromNorway
- Member sinceMay 2026
- Avg. response time1 hour
Languages
Norwegian, English
Hi! I’m Ole, a hobby developer from Norway. I enjoy building clean and simple web solutions using HTML, CSS, JavaScript and Node.js. I focus on small tasks, bug fixes and lightweight projects. Friendly communication, clear code and a relaxed, stress‑free process.
FAQ
What kind of web application will you build?
A custom tool where you can upload files, process them with your own rules, view results, and export new files
Which file types do you support?
CSV, Excel, JSON and text‑based formats. If you have something else, just ask
Can the app handle multiple files?
Yes. Standard and Premium packages support multi‑file input and merging.
Can you add custom processing logic?
Absolutely. You tell me the rules, and I build the logic into the application.
Do you offer API, FTP or database integration?
Yes. This is included in the Premium package (and simple API calls in Standard).
Will the app have a full website design?
No. This gig focuses on functionality, not visual website design.
Do you provide hosting?
No, but I can prepare the app so you can host it anywhere you prefer.
What do you need from me to get started?
A description of your workflow, example files, and the rules for how the data should be processed.
