Project Euler
LeetCode
Exercism
Codewars
HackerRank
CodeCombat
CodeForces
CodeSignal
Fetchify
Loqate
Ideal postcodes
Primo Postcodes
getAddress.io
Smarty
ConsumerCloudServices Consumer Address Finder
Google Maps
Fetchify is a leading SaaS provider of data validation and cleansing tools designed to help businesses capture, verify and maintain accurate customer information across every digital touchpoint. Our powerful cloud-based APIs and plugins make it simple to integrate real-time address lookup, email, phone, and bank validation into your website, CRM, or ecommerce platform โ improving checkout conversion, reducing failed deliveries, and protecting data quality at source.
Built on trusted global datasets including Royal Mail PAFยฎ, Multiple Residence, and Not Yet Built data, Fetchify delivers unparalleled accuracy for UK and international addresses, with rooftop-level precision through Rooftop Geocodes. Our intelligent validation services ensure that every customer record โ from signup forms to order fulfilment โ is complete, verified, and compliant.
Fetchifyโs SaaS platform is easy to deploy and scale, offering ready-made integrations with popular platforms such as Shopify, WooCommerce, Magento, Salesforce, and Microsoft Dynamics, as well as flexible REST APIs for custom applications. Developers can get started in minutes with simple documentation and transparent pay-as-you-go pricing or subscription plans.
Trusted by thousands of organisations across ecommerce, finance, logistics, retail, and marketing, Fetchifyโs solutions reduce operational costs, improve customer experience, and ensure data integrity for smarter business decisions. Whether youโre cleaning an existing database or preventing bad data at entry, Fetchify provides the reliable, scalable data validation tools your business needs to grow.
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Fetchify's answer:
Fetchify combines powerful, developer-friendly APIs with trusted, high-quality address and data sources such as Royal Mail PAFยฎ, Multiple Residence, and Not Yet Built datasets to deliver unmatched accuracy. Unlike many validation tools, Fetchify provides granular rooftop-level geocoding, flexible integrations, and transparent pricing โ all through a single, reliable SaaS platform that scales effortlessly across ecommerce, CRM, and enterprise systems.
Fetchify's answer:
Fetchify offers a balance of accuracy, speed, and simplicity rarely matched in the data validation market. Our technology focuses on preventing bad data at entry rather than correcting it later, helping businesses cut failed deliveries, boost checkout conversion, and improve customer experience. With global coverage, robust uptime, UK-based support, and flexible APIs that fit effortlessly into existing workflows, and a knowledgable, accessible support team, Fetchify is the trusted alternative to providers like Loqate, Melissa, and Smarty.
Fetchify's answer:
Fetchify is designed for businesses and developers who rely on accurate customer data โ from ecommerce and retail to logistics, finance, and marketing but the Fetchify product range is built for any SaaS platform to be lightweight, easy to implement and cost effective to use. Typical users include SaaS developers, data managers, digital marketers, and IT teams looking to integrate address lookup, email, phone, and bank validation directly into forms, CRMs, or websites to improve data quality and reduce operational friction.
Fetchify's answer:
Originally founded as Crafty Clicks in 2008, the business was acquired by software investment group ClearCourse in 2019. Since then, rebranding as Fetchify and investing in our people as well as our products, we have evolved from a simple UK postcode lookup service into a comprehensive SaaS data validation platform serving thousands of global businesses. Over the years, weโve expanded our product range, added international datasets, and continue our mission to make customer data cleaner, faster, and smarter for every business.
Fetchify's answer:
Fetchify is built on a modern, scalable cloud infrastructure using AWS and proprietary algorithms for high-speed query performance, and robust RESTful APIs for integration. Our services leverage multiple data sources including Royal Mail PAFยฎ, Ordnance Survey, USPS, and other global address providers. Continuous monitoring, automated scaling, and distributed clusters ensure reliability, speed, and resilience across all Fetchify validation products.
Fetchify's answer:
-Royal Bank of Scotland -SharkNinja -Security Watchdog -Gousto -The Access Group -Mattel -GTech -LG -The Kennel Club -Movember -Enterprise Rent-A-Car -Moonpig Group
Based on our record, Project Euler seems to be more popular. It has been mentiond 415 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Let's hope this is going to help me solve some more Project Euler [1] problems! [1] https://projecteuler.net/. - Source: Hacker News / 3 months ago
Https://projecteuler.net/ for "Thinker" brain food. (it still has the issue of not being a pragmatic use of time, but there are plenty interesting enough questions which it at least helps). - Source: Hacker News / 6 months ago
I have a Project Euler (https://projecteuler.net/) account. Though I do not register at all on the leader board I will sometimes work obsessively on a problem just to make one of the level icons light up for me. There is not really competition just a tiny reward. - Source: Hacker News / 8 months ago
I do hobby programing. It is sometimes to create something (supposedly) useful. Lately though it is more discovery and a little math like. I enjoy Project Euler (https://projecteuler.net/. Recently I have been playing with superpermutations (https://projecteuler.net/) and pencil and paper is useful but filling lots of paper with lots of numbers is not that fun. - Source: Hacker News / over 1 year ago
As pointed out in a sibling comment, it appears that quote only shows up if you're logged in, but assuming you have an account and are logged in, it's on the homepage (https://projecteuler.net/), second paragraph under the following heading: > I learned so much solving problem XXX, so is it okay to publish my solution elsewhere? > It appears that you have answered your own question. There is nothing quite like... - Source: Hacker News / over 1 year ago
LeetCode - Practice and level up your development skills and prepare for technical interviews.
Loqate - The Standard in Global Address Verification
Exercism - Download and solve practice problems in over 30 different languages.
Ideal postcodes - We help businesses improve UX and data quality with a cutting edge address validation service.
Codewars - Achieve code mastery through challenge.
Primo Postcodes - UK Postcode Address Lookup API - Maximise E-Commerce Checkouts, Increase Conversions, Reduce Data Entry & Improve Accuracy.
