2026 免费 AI 求职信生成器：7 款通过 ATS 筛选的工具

求职信是求职中最讨厌的文档：没人想写，但人人都要求定制。AI 生成器几秒出草稿——但能拿到面试的版本做对三件事：匹配职位描述、展示实绩、控制在 ATS 字符限制内。

💡 你将学到

求职信是求职中最讨厌的文档：没人想写，但人人都要求定制。AI 生成器几秒出草稿——但能拿到面试的版本做对三件事：匹配职位描述、展示实绩、控制在 ATS 字符限制内。

The Letter Nobody Wants to Write

Cover letters survive because they are the one place you can connect your resume to the specific role. The problem is volume: 20 applications, 20 letters, each needing a custom angle. AI generators solve the volume instantly - and that is exactly why the generic output gets filtered. The tools that work are the ones that force you to feed in the job description and your real achievements, then produce a letter that reads specific.

1. ChatGPT (free tier)

The best all-rounder: paste the job description and your resume highlights, and ask for a letter under 300 words that matches three specific requirements from the posting. Free, flexible, and it improves fast if you iterate on the prompt.

2. Kickresume (free tier, Pro around $12-16/mo)

Purpose-built: it takes your resume and the job posting and generates a tailored letter with formatting that matches its resume templates. Free tier covers the basics.

3. Rezi (free tier, paid from around $13-29/mo)

Its ATS obsession extends to letters: keyword alignment with the posting and clean formatting that parses correctly. The free tier is enough to test.

4. Teal (free tier, Plus around $15/mo)

Generates letters from your Teal profile and the job description, with the keyword matching that keeps you past the ATS.

5. Zety (trial, then from around $16/mo)

Guided letter builder with strong content suggestions and templates for every situation - including the awkward ones like employment gaps.

6. QuillBot (free tier, Premium around $5-10/mo)

Not a generator - the polisher. Run your AI-drafted letter through it to vary sentence structure and remove the telltale AI phrasing that recruiters now spot instantly.

7. Grammarly (free tier, Premium around $12/mo)

The final gate: tone, clarity, typos. A letter with a typo in the first paragraph is deleted before it is read.

Bottom Line

ChatGPT for the draft, QuillBot to de-AI it, Grammarly to clean it. The three rules that separate the letters that get interviews: open with the specific role and company, include one proof point from your resume matched to the posting, and stay under 300 words. AI writes the letter - you provide the specifics that make it yours.