What is ThreeArrow.ai?

ThreeArrow.ai is a free AI-powered career platform that tailors your resume for any job description, checks ATS compatibility, generates cover letters, and tracks your job applications - all in one place.

Is ThreeArrow.ai really free?

Yes! ThreeArrow.ai is 100% free with no credit card required. All features including AI resume tailoring, ATS scoring, cover letter generation, and job tracking are available at no cost.

How does the ATS score checker work?

Our AI analyzes your resume against any job description, matching keywords, skills, and experience. It provides a score out of 100 along with detailed feedback on matched keywords, missing terms, and optimized bullet points.

What file formats are supported for resume upload?

ThreeArrow.ai supports PDF, DOCX, and DOC file formats. Files can be up to 10 MB in size. Our AI parses every role, skill, and accomplishment into a structured, editable profile.

How do I get an ATS-optimized resume?

Simply upload your resume, paste a job description, and click "Check ATS Score". Our AI will analyze your resume, rewrite bullet points to match the job, and generate an optimized PDF you can download immediately.

ATS

ATS-Friendly Resume Format: The Complete Guide for 2026

Learn the exact resume format that passes ATS screening systems. Includes font recommendations, section ordering, file format tips, and common mistakes to avoid.

6 min read

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Why ATS Format Matters

Over 98% of Fortune 500 companies use ATS software to screen resumes. If your resume isn't ATS-friendly, it will be rejected before a human ever sees it. The key is using a format that parsers can read and extract data from reliably.

Best File Format: PDF vs DOCX

Use PDF for ATS submission in 2026. Modern ATS systems parse PDFs reliably, and PDF preserves your formatting. However, check the application instructions - some older ATS systems still prefer DOCX.

Fonts That Work with ATS

Use standard fonts: Arial, Calibri, Helvetica, or Georgia at 10-12pt. Avoid decorative fonts, script, or anything below 10pt. Standard fonts ensure ATS parsers can read every character.

Section Headings That Parsers Recognize

Use exactly these section headings: 'Work Experience,' 'Education,' 'Skills,' 'Projects,' 'Certifications,' 'Summary' or 'Professional Summary.' ATS parsers are trained to look for these exact labels.

What to Avoid at All Costs

Avoid: tables, columns, text boxes, headers/footers with important info, images, icons, graphics, charts, and templates with complex layouts. These elements confuse ATS parsers and can cause your resume to be parsed incorrectly.