Text Compare: Find the Difference
Free, no sign-up: paste two versions of a text and see what was added, removed and changed — by line, word or single character, side by side or inline, with a similarity score and jump-to-next-change navigation. The comparison runs in your browser: your text never leaves it and is not sent to any server. You can also compare two web pages by URL and download the result as HTML or a patch.
Your text never leaves your browser: the comparison runs on your device, and we neither receive nor store it.
Resultado
Datos clave
Compare two texts online: paste both versions and see the differences by line, word or character, a similarity percentage and edit counters. Free, no sign-up. Pasted text is processed in your browser; comparing two pages by URL involves our server.
- Precio
- Gratis
- Registro
- No necesario
- Procesamiento
- The comparison runs in your browser and pasted text is never sent to our server; in “two pages by URL” mode our server only downloads those pages
- Entrada
- Two texts (pasted, or .txt, .md, .csv and code files up to 10 MB each); the “two pages by URL” mode fetches public pages on our server (SSRF-protected) and extracts their main text
- Límites
- Text comparison is unlimited; URL mode: 6 per minute, 30 page pairs a day without an account, 90 with one, unlimited with Pro
- Resultado
- Line, word or character differences side by side or inline; added / removed / changed counts and similarity %; change navigation; copy, HTML report and unified patch
- Última actualización
Free Online Text Compare (Diff Checker)
A text compare (diff) shows how two versions differ: which lines, words or characters were removed, added or changed. Use it to review an editor’s or copywriter’s changes, check contract and article versions, or see what changed in a config file, code or an export. The tool finds differences with the Myers algorithm — the same approach git diff uses — right in your browser, so your text is never sent anywhere. Long unchanged parts are collapsed, buttons jump from one change to the next, and the result downloads as an HTML report or a patch for git. For SEO there is a “two pages by URL” mode: our server fetches both pages and extracts the main text without menus and footer, and the comparison itself again runs on your device.
Cómo usar
- Paste the original text into A and the changed text into B (or open files)
- Choose line, word or character mode and what to ignore
- Click Compare and step through the changes with the arrows
- Copy the result or download an HTML report or a patch
FAQ
PromoPilot frente a alternativas: comparación
Comparamos solo lo que está confirmado en las páginas de cada servicio. Donde no pudimos confirmar un dato, la celda muestra "—".
| Parámetro | PromoPilot | Diffchecker | Text Compare! | WinMerge |
|---|---|---|---|---|
| Differences by line, word, character | ✓ | ✓ | ✓ | ✓ |
| Processing of pasted text | en tu navegador | in the browser (per the service) | on the service's server (stated as not stored) | on your computer |
| Notes | comparing the main text of two pages by URL, a patch and an HTML report | A popular online diff for text, code and files; it says comparisons run in the browser, offers a desktop app for Windows, Mac and Linux, and puts merging and some features in paid Pro. | A simple two-text comparison with no sign-up; the text is sent to their server for comparison (they say it is not stored). | A free open-source Windows program that compares and merges files and whole folders — good for offline work and large projects. |
Desplaza la tabla hacia los lados
Dónde somos más débiles: no desktop app, version merging or folder comparison.
Cuándo elegir PromoPilot: When you need a quick, private comparison of two versions without installing anything — by line, word or character, with patch export — or want to compare the main text of two web pages by URL.
Comprobado el: . "—" significa que no está confirmado en la página oficial; las condiciones y los precios cambian, así que consulta los sitios de cada servicio.