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English
$
USD
I will convert excel or google sheets into a responsive web app or calculator
Sifdin C
Level 2
5.0
5.0
Gig Summary
About this gig
Stop emailing fragile spreadsheets to clients. Turn your Excel workbook or Google Sheet into a secure, responsive web tool that protects your proprietary formulas.
With 12+ years of frontend experience and +1000 order with five-star reviews, I convert complex spreadsheet models into fast, branded web applications for any website.
Why Convert Your Spreadsheet to Web?
Protect Your IP: Proprietary formulas and logic stay hidden and secure.
No Software Needed: Works on desktop and mobile browsers without Excel installed
Error-Proof: Prevent clients from breaking cells or formulas
Common Models Converted:
- ROI & savings calculators
- Pricing, quoting & cost estimation sheets
- Finance, loan, and mortgage models
- Commission & custom business workbooks
What You Receive:
- 100% accurate formula replication (VLOOKUP, INDEX/MATCH, nested IFs, financial math)
- Mobile-responsive UI with sliders, dropdowns, and dynamic charts
- Downloadable branded PDF reports or CSV export
- Webhook or CRM integration (Zapier, Make, HubSpot)
Compatible with WordPress, Shopify, Webflow, Squarespace, Wix, or custom sites.
Please message me with your spreadsheet before ordering!
Get to know Sifdin C
Sifdin C
Web Calculator and Excel to Web Developer
Level 2
- FromMorocco
- Member sinceFeb 2016
- Avg. response time1 hour
- Last delivery1 month
Languages
English, French, German, Spanish
I turn spreadsheets and business formulas into interactive tools for your site.
With 12+ years of experience in web development, I build custom web calculators, instant quote and Excel-to-web applications that match your brand and work perfectly on desktop and mobile.
My focus is accurate formula logic, clean interfaces, and custom integrations (lead capture, dynamic charts, branded PDF reports, and webhooks).
Whether you need a calculator for your business or want to turn a complex Excel into a secure web tool, share your spreadsheet and let's build a solution your customers can rely on
My Portfolio
FAQ
What do you need from me to start?
Please provide your Excel (.xlsx) file or a Google Sheet link, along with a list of user inputs, expected outputs, and 2 or 3 sample calculations with known correct results so I can verify formula parity.
Can you convert complex formulas and multi-tab workbooks?
Yes. I translate advanced Excel functions (VLOOKUP, XLOOKUP, INDEX/MATCH, nested IFs, and financial math) across multiple tabs into clean JavaScript so the web application behaves identically to your spreadsheet.
Can you convert Excel VBA macros?
VBA macros cannot run natively in web browsers. However, I can recreate your macro logic and automation using modern JavaScript so your web application performs the same workflows seamlessly.
Are my proprietary formulas protected from visitors?
Yes! Unlike sending an Excel file where users can inspect formulas or copy your sheet, a web tool compiles your logic into code. Visitors can use the tool, but they cannot download your spreadsheet or steal your formulas.
Will the web calculator stay synced with my original Excel file?
This gig converts your workbook logic into an independent, fast web application. If you require live two-way database synchronization where changing the sheet updates the live web tool, please message me for a custom API quote.
Can the tool generate a downloadable PDF report?
Yes. In the Standard and Premium packages, visitors can download a branded PDF summary containing their input values, calculations, and dynamic charts.
Do you provide support after delivery?
Yes, I provide 14 days of defect correction against the agreed specification. Adding new formulas, extra sheets, or features not in the original workbook is quoted separately.
Reviews
131 reviews for this Gig
| (130) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
M 
marcianderson8
United States
I am so happy with the calculator he created for me. It's so nice, and so professional. I am actually really shocked by how beautiful it turned out. It is so custom and it's going to look really good on my website. I feel very fortunate that I have found somebody who was able to do such a great job. Highly highly recommended!!!!!!!!
$800-$1,000
Price
11 days
Duration
S 
Seller's Response
Helpful?R 
rbkiwi
Canada
Sifdin always delivers the best work with the utmost care. He is knowledgeable and is quick at delivering updates and changes. I would 100% recommend reaching out to Sifdin if you need calculator widgets!
$50-$100
Price
7 days
Duration
S Seller's Response
Helpful?J jlynnonthefarm
United States
Response was immediate and confidence was instilled easily. I never doubted what I requested would be accomplished my this individual. He also tolerated my oversight in mentioning an important aspect of the project. I couldn't be happier with the results -- something I had sought assistance with locally and never quite got there. I highly recommend.
$100-$200
Price
4 days
Duration
S Seller's Response
Helpful?J josephhildit173
United Kingdom
Excellent work exactly what was required! Thanks so much
$100-$200
Price
3 days
Duration
S Seller's Response
Helpful?N nancyroutray
India
It was really nice working with him. He did exactly what we had discussed. Communication and understanding towards the project was really nice and will work with him again for a new project. Thank you again so much. It was nice working with you.
$200-$400
Price
3 days
Duration
S Seller's Response
Helpful?
Reviews
131 reviews for this Gig
| (130) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
M marcianderson8
United States
I am so happy with the calculator he created for me. It's so nice, and so professional. I am actually really shocked by how beautiful it turned out. It is so custom and it's going to look really good on my website. I feel very fortunate that I have found somebody who was able to do such a great job. Highly highly recommended!!!!!!!!
$800-$1,000
Price
11 days
Duration
S Seller's Response
Helpful?R rbkiwi
Canada
Sifdin always delivers the best work with the utmost care. He is knowledgeable and is quick at delivering updates and changes. I would 100% recommend reaching out to Sifdin if you need calculator widgets!
$50-$100
Price
7 days
Duration
S Seller's Response
Helpful?J jlynnonthefarm
United States
Response was immediate and confidence was instilled easily. I never doubted what I requested would be accomplished my this individual. He also tolerated my oversight in mentioning an important aspect of the project. I couldn't be happier with the results -- something I had sought assistance with locally and never quite got there. I highly recommend.
$100-$200
Price
4 days
Duration
S Seller's Response
Helpful?J josephhildit173
United Kingdom
Excellent work exactly what was required! Thanks so much
$100-$200
Price
3 days
Duration
S Seller's Response
Helpful?N nancyroutray
India
It was really nice working with him. He did exactly what we had discussed. Communication and understanding towards the project was really nice and will work with him again for a new project. Thank you again so much. It was nice working with you.
$200-$400
Price
3 days
Duration
S Seller's Response
Helpful?
