NEW
🎯21 tools
Career Toolbox
Beat the ATS, benchmark your salary and prep for interviews, the complete job-search kit.
ATS resume scannerSalary estimatorCareer quizInterview prep
Open toolbox →
NEW
💼22 tools
LinkedIn Toolbox
Write better posts, sharpen your profile, and reach out for jobs.
Post counter + feed previewBold text makerHeadline builderKeyword-gap analyzer
Open toolbox →
🛠️Toolbox
DevOps Toolbox
Everyday CLI, YAML, cron and pipeline helpers for engineers.
Cron parserYAML/JSON toolsBase64Regex tester
Open toolbox →
☁️Toolbox
Cloud & Kubernetes
CIDR maths, manifests and cost calculators for cloud workloads.
CIDR calculatorK8s manifestkubectl builderCost calc
Open toolbox →
🔐Toolbox
Security Toolbox
Hashing, entropy, CVSS and config checks for defenders.
CVSS scorerPassword entropyHash + HMACCSP builder
Open toolbox →
💻Toolbox
Developer Toolbox
Convert, format, diff and encode, the daily dev utilities.
JSON → typesText diffCase convertQR code
Open toolbox →
📊Toolbox
Data Toolbox
Clean, convert and profile data right in the browser.
CSV cleanerJSON ↔ CSVSQL formatterMock data
Open toolbox →
🤖Toolbox
LLM / AI Toolbox
Token counts, prompt tools and cost estimates for AI builders.
Token counterCost calculatorRAG chunkerPrompt library
Open toolbox →
🧠Toolbox
ML Toolbox
Metrics, splits and sizing calculators for ML work.
Confusion matrixTrain/test splitModel sizeSample size
Open toolbox →
CareerByteCode · Largest freelancing platform & tech community
Use the tools free. Ready to earn? Freelance with us.
Thousands of IT students, job seekers and professionals learn, grow and earn with CareerByteCode. If you want freelancing opportunities, reach out, our team will help you get started.
Questions, answered
Are the tools really free?
Yes. Every tool here is free, private, and runs entirely in your browser, with no signup and nothing uploaded to a server.
Do I need an account or to install anything?
No account and no install. Open a toolbox and start using it. Most tools keep working even offline once the page has loaded.
Which toolbox should I start with?
Pick by role: Career and LinkedIn for job seekers, DevOps, Cloud, Developer, and Security for engineers, and Data, ML, and LLM for data and AI work.
How does CareerByteCode help beyond these tools?
Join the community for mentorship, grow your personal brand, and freelance under the CareerByteCode brand with a 55% to 80% revenue share. Join the community.