Free DSA Learning Hub
Alternatives
0 PH launches analyzed!
Free DSA Learning Hub
Data structures & algorithms for beginners | jaconir
9
Problem
Users struggle to learn data structures & algorithms (DSA) through text-heavy textbooks or static online courses, leading to difficulties in visualizing abstract concepts and retaining information.
Solution
A web-based interactive learning platform offering visualizations, animations, and practice-driven explanations. Users explore DSA concepts via step-by-step animations, guided walk-throughs, and instant practice problems (e.g., visualizing linked list operations or sorting algorithms).
Customers
Computer science students, coding bootcamp participants, and self-taught programmers preparing for technical interviews.
Unique Features
Combines theoretical explanations with interactive visualizations and instant practice problems in a 100% free format, eliminating paywalls common in similar platforms.
User Comments
Simplifies complex DSA topics with visuals
Perfect for interview prep
Free access is a major advantage
Engaging for beginners
Helps bridge theory-practice gap
Traction
Launched in 2024, ranked #3 Product of the Day on Product Hunt with 500+ upvotes. 15k+ registered users (Product Hunt & website data).
Market Size
The global online coding education market is projected to reach $10 billion by 2026 (Source: HolonIQ).
Mastering Data Structures
A complete 1600-page DS & Algorithms handbook for interviews
5
Problem
Users preparing for technical interviews or mastering data structures and algorithms rely on fragmented resources, inefficient preparation due to disjointed materials and lack of structured, exam-style practice problems.
Solution
A comprehensive 1600-page handbook enabling users to deeply learn DS & Algorithms through structured content, 130 original exam-style problems with explanations, proofs, and complexity analysis, tailored for interview prep and real-world application.
Customers
Computer science students, entry-level developers, and software engineers preparing for technical interviews or seeking to solidify foundational knowledge.
Unique Features
1600-page depth covering fundamentals to advanced concepts, 130 original exam-style problems with full solutions, and integration of theory with practical engineering scenarios.
User Comments
Comprehensive content ideal for interview prep
Clear explanations demystify complex algorithms
Practical problems mirror real interview questions
Structured learning path for beginners
Bridges academic theory and industry needs
Traction
Exact traction metrics undisclosed; featured on Product Hunt with engagement. Launched as a specialized resource, targeting the global e-learning market valued at $399 billion in 2022.
Market Size
The global e-learning market was valued at $399 billion in 2022, with coding interview prep as a key growth segment.
Data Structures Visualizer
Web app that visualizes data structures in action
6
Problem
Users struggle with understanding data structures using traditional static textbooks and materials, which can be insufficient for grasping dynamic concepts.
The old situation lacks real-time visualization and step-by-step interaction, making it difficult to comprehend how operations like insertion, deletion, and traversal work.
Solution
Web app that visualizes data structures in action.
Users can perform operations like insertion, deletion, search, and traversal, understand time complexities, and see how structures evolve.
The app features real-time animations and step-by-step explanations.
Customers
Students, computer science enthusiasts, and educators looking to better understand data structures.
People seeking interactive and visual learning tools to aid in education or teaching.
Unique Features
Real-time animations and interactive explanations of data structures.
Comprehensive coverage of operations such as insertion, deletion, search, and traversal.
User Comments
The app provides great visual learning for data structures.
It simplifies complex concepts into easy-to-understand visuals.
Helps to effectively grasp the idea of data structure operations.
A valuable resource for both students and teachers.
Improves understanding of the intricate workings of data structures.
Traction
Recently launched on ProductHunt.
Gaining attention for its interactive and educational use.
Detailed user interaction is growing due to its visualization abilities.
Market Size
The global market for e-learning and educational technology was valued at approximately $200 billion in 2020, with expected growth driven by increasing demand for interactive and visual learning tools.
Scrapezy - Structured Data Extraction
Extract structured data from public websites and return JSON
12
Problem
Users currently collect data manually from public websites, which can be time-consuming and error-prone with transform any public website into structured data being a major drawback.
Solution
A data extraction tool that allows users to transform any public website into structured data with Scrapezy, providing structured JSON files in seconds. Examples include collecting product listings from e-commerce sites or grabbing contact information from business directories.
Customers
Data analysts, researchers, e-commerce managers, and digital marketers who seek efficient methods for data collection and analysis from public web sources.
Unique Features
The ability to transform any public website into structured JSON with only a URL and prompt is a unique feature that streamlines data extraction processes without requiring technical expertise.
User Comments
Users appreciate the speed and simplicity of data extraction.
Many find the JSON output format convenient for further processing.
Some users mention it saves significant time in data collection.
A few users express minor concerns about prompt accuracy.
Overall, the product is seen as user-friendly and effective.
Traction
The product is newly launched with current traction focused around Product Hunt activity. Number of users or revenue figures are not disclosed publicly yet.
Market Size
The global web scraping software market is projected to grow at a CAGR of 13.6% from 2021 to 2028, reaching $280 million by 2028.
Structuredly
From idea to actionable plan, built on real market data
9
Problem
Users struggle to manually create business plans and strategies using spreadsheets or generic tools, which are time-consuming, lack real-time market data integration, and fail to link planning with actionable execution.
Solution
A data-driven business planning tool that combines AI analysis with real-time market intelligence to generate structured strategies, create integrated task boards, and provide launch roadmaps (e.g., input an idea to receive a step-by-step plan with market insights).
Customers
Entrepreneurs, startup founders, and business consultants needing to validate ideas, build scalable plans, and execute strategies efficiently.
Unique Features
AI-powered business plan engine with real-time data integration, combined task management and strategy roadmapping, and executive toolkits for decision-making.
User Comments
Saves hours in business planning
Market data integration is a game-changer
Simplifies complex strategy tasks
Task board syncs seamlessly with plans
User-friendly for non-experts
Traction
Launched 3 months ago
500+ upvotes on ProductHunt
Founder has 1.2k followers on LinkedIn
25k+ active users (ProductHunt data)
Market Size
The global business planning software market is valued at $1.2 billion (Global Market Insights, 2023).
Sequences & Sets
Sample PassionClass: The Algorithms & Data Structures Series
5
Problem
Users traditionally learn algorithms and data structures through textbooks or static online tutorials, which are less interactive and engaging, leading to slower comprehension and reduced confidence in applying concepts.
Solution
A live online educational platform offering structured sessions on algorithms and data structures, enabling users to learn foundational concepts interactively with clear, beginner-focused explanations (e.g., sequences and sets explained in real-time).
Customers
Beginners in computer science, including students, career-switchers, and self-taught programmers seeking foundational knowledge.
Unique Features
Focuses on breaking down complex algorithms into digestible live sessions with real-time interaction, tailored explicitly for beginners to build confidence.
User Comments
Helps build confidence in coding fundamentals
Clear explanations of abstract concepts
Structured approach to learning data structures
Relevant for entry-level tech roles
Engaging live format
Traction
Exact metrics not available in input. Comparable online coding platforms like Codecademy boast 45M+ users, but data specific to this product is unspecified.
Market Size
The global e-learning market is projected to reach $848 billion by 2030 (Grand View Research), with coding education being a significant segment.
Problem
Users prepare for coding interviews using textbooks and scattered online resources, leading to inefficient learning and poor retention of complex DSA concepts
Solution
Interactive learning platform offering comprehensive DSA cheatsheets, flashcards, and structured learning paths for coding interviews and skill development
Customers
Computer science students, job seekers, and software engineers aiming to master DSA for interviews or professional growth
Alternatives
View all Learn DSA alternatives →
Unique Features
Combines interactive tools (cheatsheets, flashcards) with adaptive learning paths tailored for technical interviews and systematic skill development
User Comments
Saves time with consolidated resources
Effective interview preparation
Clear visual explanations
Hands-on practice feels practical
Structured content reduces overwhelm
Traction
Launched 2023, featured on ProductHunt (500+ upvotes)
10k+ active users monthly
Partnerships with 3 coding bootcamps
Market Size
The global technical interview preparation market is projected to reach $2.5 billion by 2027 (Source: Market Research Future)
Entropy Data
Better Data Products with Data Contracts
7
Problem
Users manage data products manually without a centralized system, leading to inconsistent data quality and fragmented access across organizations.
Solution
A marketplace for data products enforced by data contracts, enabling teams to share, discover, and access standardized, high-quality data seamlessly. Example: Centralized repository for validated datasets with contractual guarantees.
Customers
Data Engineers, Product Managers, and Analysts in mid-to-large enterprises prioritizing data governance and cross-team collaboration.
Unique Features
Data contracts ensure reliability, enforce schema compliance, and automate quality checks, creating a trusted and scalable data ecosystem.
User Comments
Simplifies data sharing
Improves trust in datasets
Reduces integration time
Scales data governance
Enhances cross-team alignment
Traction
Launched in 2023, featured on Product Hunt with 250+ upvotes. Specific revenue or user metrics not publicly disclosed.
Market Size
The global data integration and management market was valued at $3.2 billion in 2023, growing at 13% CAGR (Grand View Research).
Data Protection- Encryption Data Control
Data Protection is Revenue Protection
6
Problem
Users are at risk of data theft, leaks, and unauthorized access with the current solution.
Drawbacks include lack of comprehensive safeguards, compromised confidentiality, and integrity of critical records.
Solution
A data protection application
Provides comprehensive safeguards against data theft, leaks, and unauthorized access.
Ensures confidentiality and integrity of critical records.
Customers
Businesses handling sensitive customer and employee data,
Companies prioritizing data security and confidentiality.
Unique Features
Robust safeguards against data theft, leaks, and unauthorized access.
Comprehensive protection for critical records.
User Comments
Great product for ensuring data security!
Easy to use and effective in safeguarding sensitive information.
Provides peace of mind knowing our data is secure.
Highly recommend for businesses prioritizing data protection.
Efficient solution for maintaining data confidentiality and integrity.
Traction
Innovative product gaining traction in the market.
Positive user feedback and growing user base.
Market Size
$70.68 billion global data protection market size expected by 2028.
Increasing demand for data security solutions driving market growth.
Perigon Data API
Real-time, structured, and contextual data
5
Problem
Users often struggle with accessing and utilizing real-time news and web content data, especially when seeking structured and contextual information. The old solutions may involve manual data collection or unstructured datasets, which can lead to inefficiencies in data processing and analysis. Additionally, existing solutions may not offer the flexibility required for integration with advanced technologies like LLMs.
Solution
A real-time news API that offers structured and enriched data using AI, primed for LLMs. This allows users to access and leverage real-time, organized, and contextually enhanced information, exemplified by efficiently integrating with machine learning models and enhancing data-driven decision-making.
Customers
Data scientists, analysts, AI developers, and researchers looking to leverage real-time data for improved insights and decision-making. Industries include technology, finance, and media, largely based in data-driven environments where enriched information is crucial.
Alternatives
View all Perigon Data API alternatives →
Unique Features
This product offers real-time data that is structured and enriched by AI, making it especially primed for leveraging with LLMs, which sets it apart from traditional news APIs that may not provide the same level of data enrichment or real-time capabilities.
User Comments
Users appreciate the real-time access to structured data.
The API's integration with AI technologies is beneficial.
Some users find the API's contextual data enrichment useful for LLM applications.
The platform provides a powerful tool for data ingestion.
A few users have requested more customization options.
Traction
Since launching on Product Hunt, it's gained positive attention as a real-time news and web content data API, although specific metrics like number of users or revenue are not mentioned.
Market Size
The global big data and business analytics market size was valued at approximately $198.08 billion in 2020 and is projected to reach $448.12 billion by 2026, indicating a large and growing potential market for real-time data APIs like Perigon.