
HackerRank
LeetCode
Codility
CodeSignal
iMocha
HackerEarth
Codewars
TestGorilla
StackRender
DrawSQL
DBDiagram.io
ChartDB
Azimutt
Sqemo
Vertabelo
DbSchema
StackRender is a visual database schema editor that helps developers design, evolve, and deploy databases faster.
Instead of manually writing migration scripts or managing schema changes through ORMs, StackRender lets you modify your database visually using ER diagrams and automatically generates the required SQL migrations. This makes schema evolution safer, faster, and easier to review.
Supporting PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, and Oracle, StackRender streamlines the entire database development workflow—from initial schema design to ongoing migrations as your application grows.
StackRenderHackerRank 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.
StackRender's answer:
StackRender combines visual database design, AI-assisted schema creation, and automatic SQL migration generation in a single platform.
Unlike traditional database modeling tools that stop at documentation, StackRender treats the database schema as the source of truth. Every change made in the ER diagram is tracked and can be converted into production-ready SQL migrations, helping teams move seamlessly from design to deployment.
StackRender's answer:
Most database design tools focus on modeling, while migration tools focus on deployment. StackRender bridges both worlds.
Instead of designing a schema in one tool and manually implementing changes elsewhere, developers can design visually, track schema evolution, and generate SQL migrations from the same workspace.
StackRender helps teams:
StackRender's answer:
StackRender is built for software developers, startups, engineering teams, and mid-sized companies that build database-driven applications.
Typical users include:
It is especially useful for teams that frequently evolve their database schema and want a more visual and automated workflow.
StackRender's answer:
StackRender was born from a common frustration experienced by many developers: database design and database implementation are often disconnected.
Designing a schema is usually easy, but maintaining migrations, tracking schema changes, and keeping databases synchronized becomes increasingly complex as projects grow. We wanted a workflow where database design could directly drive implementation.
That idea led to StackRender—a platform where developers can design databases visually, track schema evolution automatically, and generate production-ready migrations from their changes.
StackRender's answer:
StackRender is built using modern web technologies with a strong focus on performance and developer experience.
Core technologies include:
The platform is designed to support scalable cloud deployments while also offering self-hosted flexibility.
StackRender's answer:
StackRender is currently used by independent developers, startups, and early-stage engineering teams building database-driven applications.
As a growing product, we are focused on working closely with our users, gathering feedback, and continuously improving the platform. We do not publicly disclose customer information at this time.
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 people’s solutions. - Source: dev.to / about 1 year 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 / over 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: almost 3 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.
DrawSQL - Easy database diagrams. Create, visualize and collaborate on your database entity relationship diagrams.
Codility - Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.
DBDiagram.io - Free database diagrams designer for analysts & developers 🛠
CodeSignal - CodeSignal is the leading assessment platform for technical hiring.
ChartDB - Visualize your DB via one-single query. Free and open source, database design editor.