Here are some free tools you can use to write and optimize your resume:

• Resume.com: A fully free resume builder that allows you to create, download, and share your resume without any hidden costs. It’s user-friendly and has various templates to choose from. You can create a professional resume in minutes and download it in multiple formats like PDF, Word, and plain text. ​

• Jobscan: This tool helps you optimize your resume to pass Applicant Tracking Systems (ATS), which are used by many companies to filter resumes. You can build a resume using their free builder or upload your existing resume to see how well it matches a job description and get optimization suggestions​. 

• ResumeUp: An AI-powered resume builder that also offers an ATS compatibility checker. It gives detailed content suggestions, detects common errors, and provides real-time feedback on your resume, making it more likely to get noticed by recruiters​

  Resume Worded.

• Resume Worded: A powerful tool that provides free resume critiques and suggestions for improvement. It scans your resume and offers keyword optimization, format fixes, and grammar corrections to help you pass both ATS and human recruiters​