📝 Text Tools
Text is the raw material of almost every workflow — code, documentation, email drafts, blog posts. Yet the small tasks that come up constantly — comparing two versions of a file, generating placeholder copy, previewing Markdown before committing, or checking whether an article is a five-minute or fifteen-minute read — rarely justify opening a heavyweight desktop app or pasting sensitive content into an unknown website.
The tools below handle those everyday text tasks directly in your browser. No data ever leaves your machine. Every diff is computed locally, every lorem ipsum paragraph is generated on the client, every Markdown render happens in a sandboxed preview pane. There is no server round-trip, no account, and nothing to install. Just open the page, paste or type, and get the result instantly.
Whether you are a developer reviewing pull-request changes, a writer polishing a draft, or a designer filling wireframes with realistic dummy text, these utilities save you a context switch and keep your content private.
Tools in this category
Tiện ích văn bản
Đếm từ, ký tự, xóa trùng lặp, chuyển đổi chữ hoa/thường và hơn thế nữa.
Tạo Lorem Ipsum
Tạo văn bản giả Lorem Ipsum.
Kiểm tra sự khác biệt văn bản
So sánh sự khác biệt giữa hai văn bản dễ dàng. Đánh dấu các phần đã thêm và bị xóa.
Trình biên tập & Xem trước Markdown
Công cụ xem trước Markdown thời gian thực. Viết Markdown dễ dàng và xem kết quả HTML được chuyển đổi ngay lập tức.
Reading Time Estimator
Words → reading & spoken-time estimates with adjustable WPM.
Frequently asked questions
What algorithm does the diff checker use?
The diff checker uses a longest-common-subsequence (LCS) algorithm similar to the one behind Unix diff. It compares text line by line, highlights additions and deletions, and optionally shows inline character-level changes. It runs entirely in JavaScript — no text is sent to any server.
Can I trust that my text stays private?
Yes. Every tool on this page is 100% client-side. Open your browser's DevTools Network tab and verify: no requests leave the page when you paste, type, or generate text. Your content never touches a server, a database, or a third-party API.
How is reading time calculated?
The estimator counts words and divides by an average adult reading speed of roughly 200–250 words per minute (adjustable). Research shows that reading speed varies with content complexity; technical material is slower than casual prose. Treat the number as a practical estimate, not a precise measurement.
Does the Markdown previewer support GitHub-Flavored Markdown?
Yes. The previewer handles GFM extensions — tables, task lists, fenced code blocks, strikethrough, and autolinks — in addition to the standard CommonMark spec. Rendering happens locally using a JavaScript parser.