HackerRank
LeetCode
Codility
CodeSignal
iMocha
HackerEarth
Codewars
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StackPicks.dev
Composio.dev
Pipedream
Autocode
Dexter
ifttt
Stackcodify
StackHive
Curated directory of 165+ open-source dev tools with honest curator takes, plus StackPicks Connect โ a unified MCP gateway connecting 800+ apps (GitHub, Gmail, Slack, Meta Adsโฆ) to Claude and Cursor through one OAuth link. โน99/$2.99 lifetime, no subscription.
HackerRank StackPicks.devHackerRank is recommended for students, individual learners, and job seekers looking to improve their coding skills, as well as for companies seeking an efficient way to evaluate candidates' technical abilities during the hiring process.
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StackPicks.dev's answer:
Indie developers and AI builders Solo founders and small startup teams Affiliate marketers connecting ad platforms to Claude (For that last one โ if a field requires real company names, just leave it empty. Never invent customers; SaaSHub and AI crawlers penalize fabricated claims, and it can bite you later. "Early-stage, used by indie builders" is the honest + safe answer.)
StackPicks.dev's answer:
StackPicks combines two things nobody else bundles: a curated directory of 165+ open-source dev tools with honest "use this / skip this" takes, AND a unified MCP gateway that connects 800+ apps to AI agents through one OAuth link. Most directories just list star counts; most MCP tools are developer-only and bill per call. StackPicks gives you both โ opinionated curation plus consumer-grade Claude integration โ for a one-time $2.99 lifetime fee, no subscription.
StackPicks.dev's answer:
Composio and Pipedream are powerful but built for developers and priced per usage. StackPicks Connect is consumer-grade: paste one URL into Claude, log in through your browser, and every connected app works โ no API keys, no per-call billing. It's bundled into a one-time lifetime plan instead of a meter. For solo builders, indie hackers, and small teams who just want their AI agent to use their apps, it's the simplest and cheapest path.
StackPicks.dev's answer:
Solo developers, indie hackers, AI builders, and small startup teams โ people who use Claude, Cursor, or ChatGPT daily and want their AI agent to actually do things across GitHub, Gmail, Slack, Notion, and their ad platforms. Also marketers and growth folks who want to pull ad-platform data (Meta Ads, Google Ads) into Claude. India-first pricing via Razorpay, but used globally.
StackPicks.dev's answer:
StackPicks started as a curated directory of open-source dev tools โ the differentiator being honest curator takes instead of raw GitHub star counts. As MCP (Model Context Protocol) took off in 2025-26, it became clear that connecting apps to AI agents was painful: one MCP server per app, a wall of config, API keys everywhere. So we built StackPicks Connect โ a unified gateway that connects 800+ apps to Claude and Cursor through a single OAuth link. Built solo by Piyush Jangir.
StackPicks.dev's answer:
Next.js 15 (App Router), TypeScript, Supabase (Postgres + Auth), Razorpay for payments, Nango for OAuth, and the Model Context Protocol (MCP) for the AI-agent gateway. Hosted on Railway.
Based on our record, HackerRank seems to be more popular. It has been mentiond 67 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.
This way, you transfer what you already know (problem-solving) but only change the syntax. Platforms like Hackerrank are also great to solve the same problem in different languages and learn from other peopleโs solutions. - Source: dev.to / 11 months ago
Firstly, solve some common data structure problems with it. Implement some data structures like arrays, linked lists, stacks, queues, etc. You can check common problems on LeetCode, Hackerank or some other resources. - Source: dev.to / about 2 years ago
I don't have a consecutive internet connection and I can't keep up learning process so I started practicing in hackerrank.com I have started some challenges in python and c++ there. Thus I have no internet connection so I cannot practice if anyone know any alternative that works like Working: Gives a challange User sumbits code and it test into testcases. Source: over 2 years ago
An effective way to improve your JavaScript skills is working through coding challenges and exercises. Sites like ReviewNPrep, FreeCodeCamp, and HackerRank have tons of challenges that allow you to practice JavaScript concepts by building mini-projects and solving problems. These hands-on challenges force you to apply what you learn. Source: over 2 years ago
I'm 18M Indian. Growing up I've always been a daydreamer, if you may. Since 8th grade - I'm fascinated by programming. And I'm good at it too. But I'm not cocky too. I wouldn't say I'm at an advanced level, but I can most probably solve any problem - in time - with my skills. I also keep my skills brushed by solving problems on Hacker Rank (every day or alternate days) and try my best to contribute on... Source: almost 3 years ago
LeetCode - Practice and level up your development skills and prepare for technical interviews.
Composio.dev - Make Agents Actually Useful!
Codility - Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.
Pipedream - Integration platform for developers
CodeSignal - CodeSignal is the leading assessment platform for technical hiring.
Autocode - Build app-to-app API workflows with automatic codegen
