
Closed
Posted
Paid on delivery
I need a straightforward web application that lets visitors calculate foreign-exchange values instantly. The only feature I require is currency conversion, powered by real-time exchange rates pulled from a reliable API. The site must handle these pairs: USD/THB, USD/KHR, THB/USD, KHR/THB, THB/KHR and KHR/USD. A clean interface showing “You send / You receive” with an auto-refreshing rate display is enough; no user accounts, log-ins or stored transaction history are necessary. Please deliver: • A responsive front-end where users pick a pair, enter an amount and see the converted figure immediately. • Server-side logic that fetches live rates every few minutes (open-source API such as Fixer, ExchangeRate-API, or a solution you propose that covers the listed currencies). • Clear instructions so I can change the API key or add more pairs later. Accuracy and speed matter most, so cache calls wisely to avoid rate-limit issues while still feeling live to the user. I’m open to your preferred stack—Laravel, Node, Django, or similar—as long as deployment on a standard VPS is smooth.
Project ID: 40654182
72 proposals
Remote project
Active 4 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
72 freelancers are bidding on average $25 USD for this job

Hello Hi, I’m Hung. I can build your real-time currency exchange application using a high-performance framework and a reliable financial API. My focus is on creating a clean, fast, and intuitive user interface that allows your visitors to calculate exchange rates instantly. I’m ready to deliver this streamlined solution for you. Giáp Văn Hưng
$30 USD in 7 days
7.0
7.0

Hi, I'm interested in your project "Real-Time Currency Exchange Site". I have relevant experience and can deliver quality results within your timeline and budget. I'd love to discuss the details. Please feel free to reach out.
$90 USD in 7 days
6.4
6.4

The one technical detail that decides this project is KHR coverage: the Cambodian Riel is not reliably present in every free FX API, so the API choice comes first, not the UI. ExchangeRate-API and Fixer both carry USD/THB/KHR — I would verify current KHR freshness on both and propose the better one, with the provider swappable behind one config line. What I would deliver: - Responsive single page: pick a pair (all six directions of USD/THB/KHR), enter an amount, "You send / You receive" updates instantly, with the live rate and its last-refresh time visible — users trust a rate more when they can see how fresh it is. - Small server-side fetcher that pulls rates every few minutes and caches them. That keeps your API key off the client, stays inside free-tier limits, and means a provider outage shows the last known rate with a timestamp instead of a broken page. - No accounts, no history, nothing stored — exactly as specified. - A short README: how to change the API key, switch provider, adjust the refresh interval, and add more currency pairs later. Delivery in 2 days. Proof: API integrations and small production web apps are my daily work — I run 18 services in production for one client. Question: should the page show both directions of a pair at once (send/receive style like a remittance widget), or one direction with a swap button? Martin
$30 USD in 2 days
6.5
6.5

Hi, I understand you need a lightweight currency converter with live exchange rates for USD, THB, and KHR, instant calculations, auto-refreshing rates, and smart API caching to avoid rate limits. I’m a full-stack developer with 14+ years of experience in Laravel, PHP, Node.js, REST APIs, JavaScript, responsive UI, and VPS deployments. I’d recommend Laravel + MySQL with a lightweight frontend, using a reliable exchange-rate API with server-side caching and a clean structure for adding currencies later. Happy to discuss your preferred API and hosting setup. Rahul Kaushik
$30 USD in 7 days
6.7
6.7

Hi, I can build this as a lightweight responsive currency converter with live exchange rates, instant “You send / You receive” calculations, and server-side caching so the rates stay fresh without hitting the provider on every request. I’ll support the six currency pairs you listed, keep the API key/config easy to change, and structure it so more pairs can be added later without rewriting the app. I can deploy it on a standard VPS and provide clear setup instructions
$30 USD in 3 days
6.5
6.5

Hi, I can help you with this project. I have relevant experience with PHP, JavaScript, HTML and can handle the work from development to testing and delivery. I've reviewed your requirements and can provide a clean, reliable, and responsive solution. Let's discuss the details and get started. Best, Arslan Shahid
$10 USD in 7 days
5.9
5.9

Hello, I will build your real-time currency converter covering USD/THB, USD/KHR, THB/USD, KHR/THB, THB/KHR and KHR/USD, with a clean "You send / You receive" interface and auto-refreshing rates. I can start today. I will cache API calls smartly to stay under rate limits while keeping rates feeling live, and document how to swap the API key or add pairs. Questions: 1) Preferred stack: Laravel or Node? 2) Any brand colors or logo for the interface? Looking forward to discussing further. Regards, Shayan.
$30 USD in 1 day
5.5
5.5

Hello, I’d be happy to develop a fast and reliable currency conversion web application with real-time exchange rates. I have 5+ years of experience in web application development, API integrations, responsive UI, and backend development. I will provide: * Clean responsive “You Send / You Receive” interface * Support for all requested USD, THB, and KHR currency pairs * Real-time exchange-rate API integration * Automatic rate refresh with smart server-side caching * Immediate conversion when users enter an amount * Reliable error handling and rate-limit protection * Simple VPS-friendly deployment * Clear documentation for changing the API key and adding future currencies/pairs * Testing to ensure accuracy, speed, and responsive performance I can use Node.js, Django, or another suitable stack based on your deployment preference and requirements. Final cost and timeline will be confirmed once I understand the complete project requirements. Warm Regards, Monica Bhatia
$20 USD in 5 days
5.3
5.3

Hi, I’ve worked on similar real-time currency tools, so I understand the challenge is keeping rates accurate and responsive while avoiding unnecessary API calls and rate-limit issues. I’d build a lightweight responsive converter with the six required currency pairs, instant calculations, and an auto-refreshed rate display. Server-side caching would fetch fresh rates at sensible intervals while keeping the UI fast. I’ll also provide clear configuration notes for changing API credentials or adding currencies later. Best Regards, Muhammad Saad K
$15 USD in 2 days
5.4
5.4

Hi, I can build your FX converter with real-time rates, clean UI, and fast performance. * Responsive “You send / You receive” interface * All required currency pairs supported * Live rates via reliable API with smart caching * Instant calculations + smooth UX * Easy setup + clear docs for API/key updates Ready to start immediately. Best, Sumit
$20 USD in 3 days
4.8
4.8

Hi, I understand you need a real-time currency exchange site with a clean interface and auto-refreshing rates. I'll ensure the site handles all specified currency pairs effectively. Could you please specify which API you prefer for retrieving real-time exchange rates?
$12 USD in 7 days
4.7
4.7

Hello, I checked your project "Real-Time Currency Exchange Site" and already have a clear understanding of your requirements and how to deliver them efficiently. I have solid experience in PHP, JavaScript, HTML, Web Development, and I've successfully completed similar projects by delivering high-quality, scalable, and reliable solutions. Why choose me? * Strong expertise in PHP, JavaScript, HTML, Web Development * Clean, optimized, and scalable implementation * Fast communication and regular progress updates * Focused on delivering results, not just completing the task I'm ready to start immediately and would be happy to discuss the details. Best regards, Umer
$25 USD in 1 day
4.2
4.2

If your app's backend is PHP, I can wire up a live exchange rate API, cache it, and have a working calculator with instant conversion on keystroke by tomorrow. Simple, fast page, no bloat. Budget and timeline here are starting points based on the post, we will lock in specifics once we talk through the full scope. I can start today. Want me to send a quick plan?
$30 USD in 3 days
3.6
3.6

Hi, I’m Yousef, a backend/web developer working with Python, Django, REST APIs, and database-driven applications. I can build this as a lightweight currency-conversion app with live exchange-rate data from a reliable API. I’d keep the implementation focused on the six required pairs, with proper API error handling, input validation, loading states, and a clean responsive interface. I would also isolate the exchange-rate provider behind a small service layer so the API can be changed later without rewriting the application. I can handle both the backend integration and the frontend conversion flow, and provide clear setup instructions for the API key/configuration. Best, Yousef
$20 USD in 2 days
3.7
3.7

Hi, I can build this lightweight real-time currency converter with a clean, responsive interface and instant conversion results. I’ll implement all six required currency pairs with server-side live exchange-rate fetching, smart caching, and automatic rate refresh to keep the rates current while avoiding unnecessary API calls and rate limits. The API key will remain securely handled server-side, and I’ll provide clear documentation for changing the API key, cache duration, and adding more currency pairs later. I’ll ensure the final application is fast, accurate, responsive, and easy to deploy and maintain. Thank you!
$20 USD in 2 days
3.4
3.4

Hi, Do you already have a preferred exchange-rate API, or would you like me to choose the most reliable option for the required currencies? I can build this clean and responsive currency converter with Laravel/PHP, real-time exchange-rate API integration, smart caching, and automatic rate refresh. I’ll implement all 6 required currency pairs, instant “You Send / You Receive” conversion, error handling, and simple documentation for changing the API key or adding more pairs. I can deliver a fast, reliable, and VPS-friendly solution. Best regards, Usman
$20 USD in 7 days
3.3
3.3

As a seasoned MERN Stack Developer, I'm well-equipped to exceed your expectations for your Real-Time Currency Exchange Site. Not only can I deliver on all your required features, such as "You send / You receive" interface with auto-refreshing rates, but also provide clear instructions to enable you to maintain the site easily by changing the API key or adding more pairs in the future. One of my strengths is performance optimization and cache management which will be crucial for avoiding rate-limit issues while maintaining real-time data. Additionally, my extensive knowledge of handling APIs whether it be Fixer or Exchange Rate-API will ensure smooth functionality that pulls reliable exchange rates periodically without any disruptions. Perhaps most importantly, I am highly adaptable and always ready to familiarize myself with new languages or frameworks if necessary. While I am proficient in using MERN stack I am more than willing to use your preferred stack to match the deployment needs you have for a standard VPS. Choose me and let's turn your vision into a superbly functioning reality!
$10 USD in 7 days
3.5
3.5

Hi, I'm Ahsan Habib. I can build this cleanly, a simple send/receive currency converter covering all six pairs you listed with live rates pulled from an exchange rate API. I'd go with Django or Node depending on your preference, with server-side caching so rates refresh every few minutes without hitting rate limits while still feeling live on the frontend. The UI will be simple and responsive, pick a pair, enter amount, see the converted value instantly, no accounts or history needed. I'll include clear instructions for swapping the API key or adding more currency pairs later, and make sure it deploys smoothly on a standard VPS. Let's connect to confirm stack preference and timeline.
$10 USD in 6 days
3.6
3.6

With my extensive experience in web and app development, I'm confident I can meet all your needs for the real-time currency exchange site you envision. My in-depth understanding of API development and backend/frontend development gives me the ability to harness live rates using a reliable API with efficiency on a server. I have used popular API solutions including Fixer and ExchangeRate-API that would fit your project perfectly. I also understand the importance of good cache management to ensure rate limits aren't surpassed while guaranteeing a live experience for users. My proficiency in HTML, JavaScript, and PHP combined with your preferred stack ensures we're able to deliver a reliable, clean interface where users can effortlessly convert chosen currencies within seconds. Let's not forget that as an SEO-optimization enthusiast, I would add value to the project's visibility online. Overall, what sets me apart is my commitment to client satisfaction and my ability to deliver standout results. With clear instructions on how you can change the API key or add more pairs yourselves, you'll have full control over the platform even after our collaboration ends. Let's embark on this project together and create an engaging, high-performance solution that will truly benefit users needing real-time currency exchange convenience.
$10 USD in 2 days
3.1
3.1

Hello client, I can build this lightweight real-time currency converter with a clean, responsive interface and reliable API integration. I’ll provide: USD/THB, USD/KHR, THB/USD, KHR/THB, THB/KHR & KHR/USD “You Send / You Receive” instant conversion Live exchange-rate updates with smart caching Secure server-side API integration Easy API key and currency-pair configuration Fast, mobile-friendly frontend Simple VPS deployment and setup instructions I’ll focus on accuracy, speed, and avoiding unnecessary API calls while keeping the rates regularly updated. Best regards, Aminul
$22 USD in 3 days
2.8
2.8

Gorakhpur, India
Member since Aug 3, 2026
₹1500-12500 INR
$25-50 USD / hour
$250-750 USD
$25-50 USD / hour
$250-750 USD
$25-50 USD / hour
£18-36 GBP / hour
₹750-1250 INR / hour
₹12000-18000 INR
₹100-400 INR / hour
$25-50 USD / hour
$750-1500 USD
$250-750 USD
£250-750 GBP
₹12500-37500 INR
₹75000-150000 INR
₹1500-12500 INR
$5000-10000 USD
$30-250 USD
₹12500-37500 INR