Currency Converter is a jQuery-based JavaScript widget that adds a currency conversion tool to a website, letting visitors convert amounts between roughly 164 and 171 world currencies using live exchange rates. It ships with six built-in themes, localisation files and connectors for three commercial rate providers, and it is aimed at developers and site owners who want a ready-made converter rather than building one from scratch. At $6 it sits at the impulse-buy end of the ThemeForest JavaScript category.
The plugin has been maintained for over a decade, with the changelog running from 2013 to a September 2024 release. That longevity is the most useful signal here: many cheap converter scripts are abandoned within a year, and this one has repeatedly updated its rate providers as free APIs shifted or shut down.
What the Currency Converter javascript widget actually does
The core interaction is simple. A visitor picks a source currency, picks a target currency, enters an amount, and the widget returns the converted figure. Behind that, the plugin does several things that matter more than the interface itself.
Live rates from multiple providers
Exchange rates are fetched from an external service rather than hard-coded into the script. The vendor supports three: Fixer, Currency Layer and Open Exchange Rates. Each requires its own API key, and each has its own free tier limits. The plugin has changed its default free provider several times across versions, which is worth knowing because it means the out-of-the-box experience depends on whichever service the current release points to. The 2014 addition of the ability to deploy a custom rate provider is the most durable feature in the list: a developer can point the widget at an internal endpoint or a different API entirely, which removes the dependency on the vendor’s choices.
Currency coverage and formatting
Support for 164 to 171 currencies covers every major traded currency plus most minor ones. The vendor gives a range rather than an exact figure, so the precise count depends on the provider in use. Version 1.8 added thousands and decimal point separators, which matters more than it sounds: a converter that renders “1234567.5” instead of “1,234,567.50” looks broken to most audiences. Localisation files are included, so interface strings can be translated, though the vendor does not state which languages ship as standard.
Theming and integration
Six built-in themes give a starting point for matching a site’s look without writing CSS from the ground up. The plugin is described as platform-agnostic, meaning it does not require WordPress, Laravel or any particular CMS; anywhere jQuery runs, it should work. The changelog confirms jQuery 3.6 support, PHP 7.4 and 8 support, PHP 8.2 support, MySQL strict mode compatibility and CORS handling, which together suggest the backend component has been kept current rather than left to rot.
Where this Currency Converter javascript plugin fits, and where it does not
The clearest fit is a travel, e-commerce or finance-adjacent site that wants a small utility widget rather than a full currency-switching system. A hotel site showing room prices in a guest’s home currency, a remittance or forex information page, or a blog about international money all suit it. Freelancers building small business sites will find the price-to-effort ratio attractive: $6 against a few hours of custom development is an easy trade.
It is also a reasonable choice for agencies that need a converter as one component of a larger build and do not want to own the maintenance of exchange-rate plumbing. The custom provider option means the widget can be wired into an existing data pipeline.
It is the wrong choice for anyone who needs real transactional currency switching. This is a display and conversion widget, not a multi-currency checkout. A store that needs to charge customers in their local currency, with prices stored per currency and tax rules applied per region, needs a proper e-commerce currency module, not a jQuery widget. The same applies to sites with strict data-residency or no-third-party-request policies: live rates mean an outbound API call, and if that is unacceptable, a static rate table is the better route.
What setup involves in practice
Installation is a file upload plus a short initialisation call, which is the standard pattern for a jQuery plugin. The real work is in the rate provider. Before anything displays correctly, someone needs to register with Fixer, Currency Layer or Open Exchange Rates, obtain an API key, and place it in the configuration. That is a prerequisite the vendor makes clear but which buyers sometimes miss: without a key, the widget has no rates to show.
The backend component implies a PHP-capable host and, based on the changelog, a MySQL database for caching or storage. That rules out purely static hosting unless the custom provider option is used to route requests elsewhere. Expect the initial setup to take somewhere between thirty minutes and two hours for a developer comfortable with jQuery and API keys, plus additional time to restyle the widget to match a specific design. The vendor provides online documentation, which is the main reference for configuration options.
Strengths and limitations
Strengths
- Very low cost relative to the development time it saves, at $6.
- Broad currency coverage, with the vendor citing 164 to 171 currencies.
- Three commercial rate providers supported, plus the option to plug in a custom one.
- Actively patched: PHP 8.2, jQuery 3.6 and CORS support all arrived in recent releases.
- Six themes and localisation files reduce the design and translation work.
- Platform-independent, so it is not tied to WordPress or any single CMS.
Limitations
- Live rates depend on a third-party API key and that provider’s free-tier quota. Heavy traffic can exhaust a free plan, and the vendor does not state what happens when the limit is hit.
- The default free provider has been swapped repeatedly across versions, which means older tutorials and configuration snippets found online may no longer match current behaviour.
- The PHP and MySQL backend requirement is a real constraint for static or serverless sites.
- The vendor does not publish an exact currency count, so the 164–171 range is the only figure available.
- No sales figures are disclosed on the listing, so there is no independent signal of adoption.
- It is a converter, not a multi-currency pricing system; there is no cart, checkout or per-region price storage.
How it compares with the wider category of currency converter scripts
Currency converter javascript tools broadly fall into three groups: free snippets that hard-code a rate table, mid-range plugins like this one that pull live rates from an API, and full multi-currency platforms built for e-commerce. This product sits firmly in the middle group, and that is where most of its value lies.
Against free snippets, the advantage is maintenance. A hard-coded table is accurate on the day it is written and wrong thereafter; this plugin fetches current rates and has a decade of provider updates behind it. Against full multi-currency platforms, the trade-off runs the other way: those systems handle pricing, tax and checkout, cost far more, and require significant integration. This widget does one job and does not pretend otherwise.
The middle ground is also the most competitive. Several similar jQuery converters exist, and the differentiators come down to currency count, provider flexibility and how recently the code was touched. The 2024 release and the custom-provider option are this product’s strongest arguments in that comparison. Buyers comparing on those criteria will find it competitive; buyers who need a specific provider not on the supported list will need to check whether the custom option covers it.
Frequently Asked Questions
Does Currency Converter need an API key to work?
Yes, live conversion requires an API key from Fixer, Currency Layer or Open Exchange Rates. The plugin does not ship with a working key, so the buyer must register with one of those services and add the credentials during configuration. Without a key, the widget has no exchange rates to display.
Can the Currency Converter javascript widget run on a static site?
Not in its default configuration. The changelog references PHP and MySQL support, indicating a server-side component, so a PHP-capable host is normally required. The custom rate provider option added in version 1.6 may allow a different architecture, but the vendor does not document a static-hosting path.
How many currencies does it support?
The vendor states between 164 and 171 currencies, without giving an exact figure. The precise number depends on which rate provider is connected, since each service covers a slightly different set. Major currencies such as the US dollar, euro and pound sterling are included, along with most minor and emerging-market currencies.
Is this suitable for a WooCommerce or Shopify store?
No, not for currency switching at checkout. It is a display widget that converts an amount a visitor types in; it does not store prices per currency, apply regional tax rules or change what a customer is charged. Stores needing real multi-currency selling should use a dedicated e-commerce currency module instead.
Verdict
Buy this if a site needs a lightweight, good-looking currency converter with live rates and the budget is small. It suits travel sites, finance content, small business builds and agency projects where a converter is one component among many. The custom provider option and the recent maintenance record make it a safer bet than most $6 scripts.
Do not buy it if the requirement is transactional multi-currency pricing, if the host cannot run PHP, or if an outbound API call to a third-party rate service is not acceptable. In those cases the widget solves the wrong problem, and no amount of theming will change that.
