DevelopersMatrix

Free tool directory

AI Powered Tools

Free tools for your career, your website, your money and your day. Every tool runs in your browser and none of them asks you to sign up.

  • Free to use
  • No account needed
  • Works in your browser

What do you need to do?

Choose a goal or search to narrow the list

See the tools

New here? Start with one of these

Career

Resumes, cover letters, interview practice and pay data

  • AI Resume Builder

    Write your resume on a live A4 page with a check on every bullet.

    Quick lookOpen tool
    • Live A4 preview with page breaks
    • Three ATS friendly templates
    • Resume check on every bullet
    Best for
    Job seekers in any field, tuned for tech roles
    You get
    PDF resume

  • AI Cover Letter Generator

    Turn a job posting and your own results into a tailored letter.

    Quick lookOpen tool
    • Job description skill matching
    • Built only from your own results
    • Formal, warm and direct tones
    Best for
    Anyone applying for a role this week
    You get
    Ready to send letter

  • AI Interview Simulator

    Answer real interview questions and get a score on every answer.

    Quick lookOpen tool
    • 101 questions across 12 roles
    • Instant scored feedback on each answer
    • Session history with an average score
    Best for
    Candidates preparing for an interview
    You get
    Scored feedback

  • Salary Estimator

    Official US pay ranges for your job in any state or city.

    Quick lookOpen tool
    • Official BLS wage data
    • Pay range from the 10th to the 90th percentile
    • Every US state and metro area
    Best for
    Job offers, raises and moving cities
    You get
    Pay range

SEO and Web

Audit a website and check content before you publish

  • AI Website Audit

    Score any website and get a fix list ordered by impact.

    Quick lookOpen tool
    • Around 150 checks in eight areas
    • Fixes ordered by how much they matter
    • Core Web Vitals from Google PageSpeed
    Best for
    Site owners, marketers and freelancers
    You get
    Score and fix list

  • AI Content Detector

    See whether text reads as AI or human, sentence by sentence.

    Quick lookOpen tool
    • AI signal score out of 100
    • Sentence by sentence highlights
    • Each signal explained in plain words
    Best for
    Editors, writers and teachers
    You get
    AI signal score

AI and Writing

Ready prompts and help with work emails

  • AI Prompt Library

    Ready prompts you can fill in and open in ChatGPT or Claude.

    Quick lookOpen tool
    • 64 prompts in 8 categories
    • Fill in the blanks prompt builder
    • Open in ChatGPT or Claude
    Best for
    Anyone who wants better answers from AI
    You get
    Copy ready prompts

  • AI Email Assistant

    Start from a template and check your draft before you send it.

    Quick lookOpen tool
    • 18 email templates in three tones
    • Blanks you fill in right inside the email
    • Draft checker with problems marked in the text
    Best for
    Busy professionals and new starters
    You get
    Polished email

Productivity

Habits, day plans and business ideas

  • Daily Habit Tracker

    Check in daily and watch real streaks build on a 12 week wall.

    Quick lookOpen tool
    • Daily check ins tied to real dates
    • Current and best streaks
    • 12 week wall
    Best for
    Building a routine that sticks
    You get
    Streaks and history

  • Startup Idea Generator

    Business ideas matched to your skills, with a seven day test plan.

    Quick lookOpen tool
    • Ideas matched to your skills, time and budget
    • Twenty industries and five ways to earn
    • One page idea canvas
    Best for
    Side projects and first time founders
    You get
    Idea canvas

  • Productivity Planner

    Turn a task list into an hour by hour plan for today.

    Quick lookOpen tool
    • Must, Should and Could priorities
    • Top 3 first
    • Hour by hour timeline
    Best for
    Busy days with too many priorities
    You get
    Day timeline

Finance

Plan your monthly budget and savings

  • Budget Planner

    See what is left each month and when you will reach a savings goal.

    Quick lookOpen tool
    • Money in and money out with any frequency
    • Where every 100 goes
    • 50/30/20 check
    Best for
    Households, freelancers and students
    You get
    Monthly budget

Gaming

Check PC game requirements before you buy

  • Can You Run It?

    Compare your PC with the official requirements of popular games.

    Quick lookOpen tool
    • Compare PC specs to game requirements
    • Minimum and recommended specs side by side
    • 26 games checked against publisher specs
    Best for
    PC gamers before they buy
    You get
    Spec by spec verdict

How our tools work

Three Steps, No Sign Up

  1. 1

    Pick a tool

    Choose a goal above or search by name. Every tool opens straight away.

  2. 2

    Add your details

    Type, paste or choose. Your work stays in your browser while you use it.

  3. 3

    Use the result

    Download, copy or act on a clear result. Each tool explains what to do next.

Tool Questions

Missing something? Tell us on the contact page.

Are these tools free?

Yes. Every tool on DevelopersMatrix is free to use, with no trial period and no card details. The site is supported by a small number of ads.

Is an account needed?

No. None of the tools ask you to sign up. Tools that keep your work, such as the Budget Planner and the Habit Tracker, save it in your own browser.

Which tool is the best place to start?

Choose a goal at the top of this page and the list narrows to the tools that fit. If you run a website, the AI Website Audit is a good first step. If you are job hunting, start with the AI Resume Builder.

Does the team take tool suggestions?

Yes. Send your idea through our contact page and our team will review it for a future update.