Source: https://seerepo.com/compare/Billionmail/BillionMail/vs/CorentinTh/it-tools
Markdown source: https://seerepo.com/compare/Billionmail/BillionMail/vs/CorentinTh/it-tools.md
Description: BillionMail and it-tools share 7 technologies: Vue, vue-router, naive-ui, monaco-editor, highlight.js, markdown-it, and marked. BillionMail is written in Go and it-tools in Vue.

# BillionMail vs it-tools

BillionMail and it-tools share 7 technologies: Vue, vue-router, naive-ui, monaco-editor, highlight.js, markdown-it, and marked. BillionMail is written in Go and it-tools in Vue.

- [Billionmail/BillionMail](https://seerepo.com/r/Billionmail/BillionMail): BillionMail gives you open-source MailServer, NewsLetter,  Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the discord: https://discord.gg/asfXzBUhZr
- [CorentinTh/it-tools](https://seerepo.com/r/CorentinTh/it-tools): Collection of handy online tools for developers, with great UX. 

## What they share and what sets them apart

- In common: Vue, vue-router, naive-ui, monaco-editor, highlight.js, markdown-it, marked
- Only in BillionMail: github.com/golang-jwt/jwt/v5, go-openai, github.com/pkoukk/tiktoken-go, github.com/xuri/excelize/v2, Docker, github-markdown-css, UnoCSS, echarts, ora, @wangeditor/editor, react-dnd-html5-backend, prismjs
- Only in it-tools: Vite, tiptap, vuedraggable, @tabler/icons-vue, bcryptjs, jwt-decode, yaml, qrcode, xml-js, dompurify, xml-formatter, cron-validator

## Side by side

| | BillionMail | it-tools |
|---|---|---|
| Size | 109,424 lines written, 733 code files | 20,732 lines written, 355 code files |
| Who writes it | 4.8% of its commits signed by AI. With Claude Code | 0% of its commits signed by AI |
| Activity | Last push June 11, 2026, 1,068 commits, 16,208 stars | Last push October 27, 2026, 618 commits, 41,133 stars |
| Tests | 113 test files. 20.6% of its code files have a test that imports them | 59 test files. 9.6% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, BillionMail or it-tools?

BillionMail, with 109,424 lines written; it-tools has 20,732.

The proof: [Billionmail/BillionMail's code at commit fc36c76](https://github.com/Billionmail/BillionMail/tree/fc36c76c050c3775c5e899faf7403cf0262d2744)

### Which has more GitHub stars, BillionMail or it-tools?

it-tools, with 41,133 stars; BillionMail has 16,208.

The proof: [CorentinTh/it-tools on GitHub](https://github.com/CorentinTh/it-tools)

### Which has more tests, BillionMail or it-tools?

BillionMail, with 113 test files; it-tools has 59.

The proof: [Billionmail/BillionMail's code at commit fc36c76](https://github.com/Billionmail/BillionMail/tree/fc36c76c050c3775c5e899faf7403cf0262d2744)

### Which was updated more recently, BillionMail or it-tools?

it-tools: its last push was on October 27, 2026, and BillionMail's on June 11, 2026.

The proof: [CorentinTh/it-tools's commits on GitHub](https://github.com/CorentinTh/it-tools/commits)

### Which has more commits signed by AI, BillionMail or it-tools?

BillionMail: an AI signed 4.8% of its commits, with Claude Code.

The proof: [the commits each tool signed in Billionmail/BillionMail](https://seerepo.com/r/Billionmail/BillionMail/ai)

## Sources

- Billionmail/BillionMail: Read on November 7, 2026, at commit fc36c76 (https://github.com/Billionmail/BillionMail/tree/fc36c76c050c3775c5e899faf7403cf0262d2744)
- CorentinTh/it-tools: Read on November 6, 2026, at commit d505845 (https://github.com/CorentinTh/it-tools/tree/d505845f918e946ec300af7b36efc107e2f66e9e)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.