Code Signal

Verified!

Assess and develop your tech skills with CodeSignal. Its AI assessment and learning tools help you or your team to progress

(4.5)
Average rating 4.5 out of 5

Free, Freemium

Tool Information

Company

CodeSignal (formerly CodeFights)

Founded

2015

Pricing

Free, Freemium

About CodeSignal

CodeSignal is a tech platform offering AI-powered coding assessments and experiential learning to measure and improve coding skills. Originally launched as CodeFights in 2015, it was rebranded to CodeSignal in 2018 and now supports hiring, education, and reskilling through tools like Hire, Learn, and Develop.

Pros

  • ✔️ Standardized coding score for fair evaluation.
  • ✔️ AI tutor “Cosmo” for guided learning.
  • ✔️ Live interviews and IDE-based simulations.
  • ✔️ Trusted by top companies for hiring.
  • ✔️ Strong analytics and learning insights.

Cons

  • ✖️ Time-pressured coding assessments.
  • ✖️ Limited room for creative solutions.
  • ✖️ Might feel intimidating for beginners.
  • ✖️ Advanced customization requires paid plans.

Key Features

✔️ Coding Score (300–850) benchmarking system.
✔️ AI tutor “Cosmo” for real-time guidance.
✔️ Live technical interviews with collaborative IDE.
✔️ Project-based real-world coding assessments.
✔️ CodeSignal Learn with courses & AI support.
✔️ Advanced analytics and skill benchmarking insights.

 

English Thumbnail
Beginner’s Guide To The New CodeSignal

Ready-to-Use Prompts

Copy and customize these prompts for your specific needs

1. Function Generation

“Write a [Programming Language PHP, Java, Python] function named [Function Name] that takes [Number] [Type] argument and returns its [Result]. Include a docstring that explains what the function does, its parameters, and its return value.”

2. Web Development (Front-End):

“Generate the [Languages HTML, CSS, JS] for a [Description Portfolio, Business, Ecommerce, Login] with fields for [Components Login Page, Store, Gallery page] should have a [Style:- Minimalistic, Hover Effect, Professional] look and should be [Positioning Name on top, Services on middle, Store at bottom] on the page.”

3. Data Analysis

“Write a [Programming Language PHP, Java, Python] script using the [Library Panda, OpenCv, NumPy] library that reads a [File Type .py, .js, .java] file named [Input File Name], fills any missing values in the ‘[Column]’ column with the [Method] of the existing data, and then saves the cleaned data to a new [File Type .py, .js, .java] file called [Output File Name].”

4. Problem Solving (Algorithm):

“Write a [Programming Language PHP, Java, Python] function that takes an array of [Type 2D, 3D, Multi Dimensions] and returns the [Calculation Arithmetic, Logical, Binary] of all the [Condition If, else, while, do while, for loop] in the array. The function should be named [Function Name].”

5. SQL Query

“Write an [Database Language DDL, DML, DQL, DCL, and TCL] query that joins the [Table 1] table and the [Table 2] table. Select the [Column 1]‘s [Property data independence, concurrency control, and security] and the [Column 2] for all [Items] placed in the [Timeframe].”

Customer Reviews


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Pricing Plans

Build Plan

$79/month

Use for Assessments & Interviews

Access to 2,000 Questions

Universal & Core Tech Assessments

Product, Design, & Engineering AI Interviewers

AI Proctoring & ID Verification

Grow Plan

$479/month

420 Annual credits

Everything in Build, plus:

Go-To-Market Assessments

Sales, CS, & Marketing AI Interviewers

Basic ATS Integrations

Pro Plan

Custom Pricing (Talk to sales)

Custom credits based on needs

Everything in Grow, plus:

All Assessments & AI Interviewers

Advanced Fraud Prevention & Role-Based Access Control (RBAC)

Enterprise ATS Integrations

Dedicated CSM & Quarterly Business Reviews (QBRs)

 

Use Cases

Practice coding challenges directly inside VS Code.

Test your solutions instantly without switching tabs.

Track progress on coding tasks while preparing for interviews.

Access guided problem hints to improve skills.

Stay consistent with daily coding practice inside your editor.

[tool_use_cases

- Candidates practicing coding and preparing for interviews with realistic simulations.

- Organizations upskilling non-technical staff with guided, project-based learning.

- Universities assessing students and benchmarking technical competency across cohorts.

- Individuals learning coding through AI-guided, interactive challenges.

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