Guides
Plain-English, step-by-step help for everyday file jobs.
How to merge, compress and password-protect PDFs offline (Mac, Windows, Linux)Merge PDFs, shrink them, rotate pages, add a watermark or a password — without uploading your documents to a website.
How to bulk rename hundreds of files safely — with a preview and undoRename photos, documents or music in bulk with find-and-replace and numbering, see every change before it happens, and undo with one click.
Send large files between two computers without uploading to the cloud — freeSend files or whole folders of any size to another computer with a short code phrase. End-to-end encrypted, no account, no size limit.
How to move Google Photos to Immich (Google Takeout import) step by stepImport your Google Takeout archives into your Immich server with albums, dates and locations intact — with a dry run first.
How to compress a video for Discord, email or WhatsApp — free of uploads, on your own computerShrink a video to fit Discord, email or messaging limits in a few clicks, without uploading it to a compression website.
How to turn a video clip into a high-quality GIF (Mac, Windows, Linux)Make a sharp, small animated GIF from any part of a video — with a proper color palette, no watermark, no upload.
How to extract the audio from a video as MP3 — offlineSave the sound of any video (lecture, concert, podcast recording) as an MP3 file in a couple of clicks.
How to convert a Word document to Markdown (for ChatGPT, Claude or Obsidian)Turn .docx files into clean Markdown that AI assistants and note apps read well — offline, keeping headings, lists, links and tables.
How to convert Markdown to a Word document (.docx) — with a table of contentsTurn Markdown notes or AI-written drafts into a proper Word file with real headings and an optional table of contents.
How to compress photos for email, websites and upload limits (offline, Mac, Windows, Linux)Make photos smaller, resize them, convert to JPG or WebP and fit a size limit like 500 KB — a whole folder at once, without uploading them anywhere.
How to let Claude or Cursor create real Word and PowerPoint files on your computerChat assistants can write the content but not save a .docx or .pptx to your disk. One install fixes that — locally, with Pandoc.
How to make a polished PDF from text with Claude or ChatGPT — no Word, no uploadInvoices, letters, reports and CVs as beautifully typeset PDFs, written by your AI and made on your computer with Typst.
How to combine many CSV files into one Excel file (Mac, Windows, Linux — no code)Stack monthly exports into one spreadsheet, convert CSV to Excel and remove duplicate rows — offline, even with millions of rows.
How to let Claude or Cursor analyse a big CSV or Excel file on your computerFiles too large to paste into chat? Give your AI a local data engine: it queries the file where it is and only reads back the answer.