Guides
Guides
Guides pratiques pour manipuler vos fichiers en toute sécurité dans votre navigateur. Chaque article renvoie directement à l'outil correspondant.
How to Merge and Split PDFs in Your Browser — No Upload Needed
How to combine several PDFs into one, or pull out just the pages you need — processed safely inside your browser, without sending files to a server.
Lire →WEBP vs PNG vs JPG — Which Format to Use, and When
How the three main web image formats differ, which one fits each situation, and how to convert between them right in your browser.
Lire →What Is On-Device AI? Using AI Without Uploading Your Files
How on-device AI runs models directly inside your browser with WebGPU and WebAssembly — the concept, the upsides, and the trade-offs.
Lire →Auto-Generate Subtitles from Video and Audio (Free, In Your Browser)
How to automatically generate subtitles and transcripts from meeting recordings or videos — processed in the browser, with no upload.
Lire →5 Ways to Shrink a PDF
Practical ways to slim down heavy PDFs that keep running into email attachment and upload size limits.
Lire →Local LLMs in 2026 — Llama, Mistral, Phi, or Gemma?
What sets the four major open-weight model families apart on laptops and in browsers, and what to look for when running them on-device.
Lire →How GDPR and Privacy Laws Shape AI — and Why On-Device Is the Answer
How privacy regulation constrains the design of AI services, and why processing that never transmits data is such a powerful solution.
Lire →Why Businesses Should Consider Local AI Over Cloud AI in 2026
Why on-device AI is emerging as an alternative — data control, cost, latency, and compliance — with an honest look at its limits.
Lire →7 Principles for Real Privacy in the Age of AI
Seven concrete, actionable principles for keeping your data yours while using AI tools.
Lire →How to Password-Protect a PDF (and Unlock It) in Your Browser
How to add an open password to sensitive PDFs, and remove it again with a password you know — with the file and password never leaving your browser.
Lire →How to Extract Audio from Video as MP3 (In Your Browser, No Upload)
How to pull just the audio out of lecture, meeting, or interview videos and save it as MP3 — without uploading the large video file to a server.
Lire →How to Turn a Video into a GIF (In Your Browser, No Upload)
How to turn short video clips into looping GIFs — converted inside your browser without uploading the video. Includes when a GIF fits and when a video is better.
Lire →How to Remove an Image Background — With AI, In Your Browser, No Upload
How to remove the background from portrait or product photos with AI and save them as transparent PNGs — processed inside your browser, with no upload.
Lire →Convert Dozens of Images at Once (as a ZIP, In Your Browser)
How to convert many images to another format at once, shrink their size, and download them as a ZIP — with parallel processing and resume, all inside the browser.
Lire →How to Add Page Numbers to a PDF (In Your Browser, No Upload)
How to stamp a page number on every page of a report or contract PDF — processed inside your browser, without sending the file to a server.
Lire →How to Convert M4A or WAV to MP3 (In Your Browser, No Upload)
How to convert audio files between MP3, WAV, M4A, OGG, and more — transcoded directly inside your browser with FFmpeg.
Lire →Summarize and Question a Long PDF with AI (In Your Browser, No Upload)
How to summarize a PDF of dozens of pages with AI and ask it questions directly — analyzed inside your browser, without sending the document to a server.
Lire →Turn a Meeting Recording into Notes Automatically (In Your Browser)
How to auto-transcribe a meeting or interview recording and summarize it with AI into meeting notes — processed in your browser by default.
Lire →How to Try Repairing Corrupted Photos and Documents (In Your Browser)
How to diagnose and attempt to repair PNG/JPG photos or DOCX/XLSX documents that suddenly won't open — processed 100% inside your browser, never uploaded.
Lire →How to Reduce Photo File Size — Without Wrecking Quality (In Your Browser)
How to shrink large photos that keep hitting email and upload limits, with minimal quality loss — by changing format and quality, all inside your browser.
Lire →Can You Convert a PDF to Word? What Works in the Browser — and What Doesn't
Why converting a PDF into an editable Word file is so tricky, and the practical way to safely extract or summarize its text right in your browser.
Lire →How to Reduce Video File Size (In Your Browser, No Upload)
Practical ways to shrink large videos that keep hitting messenger, email, and upload limits — re-encoded inside your browser, with an honest note on big files.
Lire →AI에게 표·데이터 정리를 잘 시키는 법 (프롬프트 5가지)
뒤죽박죽 데이터를 AI로 깔끔한 표로 만드는 실전 프롬프트. 열 지정·정렬·집계·형식·이상값 처리까지.
Lire →AI에게 민감한 문서를 맡기기 전 확인할 5가지
계약서·이력서·의료기록을 AI에 넣기 전 반드시 점검할 5가지. 편리함과 프라이버시를 함께 지키는 현실적인 기준.
Lire →Claude로 Word·Excel·PPT·PDF 자동 만들기 — 문서 스킬 4종
Claude의 공식 문서 스킬(docx·xlsx·pptx·pdf)로 오피스 문서를 자동 생성·편집하는 법. 그리고 민감한 문서를 안전하게 다루는 기준.
Lire →Claude로 발표자료(PPT) 자동으로 만들기 — pptx·theme-factory 스킬
Claude의 pptx 스킬로 슬라이드덱 초안을 뽑고 theme-factory로 통일된 디자인을 입히는 법. 발표 준비 시간을 줄이는 실전 활용.
Lire →Claude Skills 완전정리 — 공식 스킬 17종과 언제 무엇을 쓸까
Claude에 '전문 능력'을 붙이는 Agent Skills. 공식 저장소의 검증된 스킬 17종을 문서·개발·디자인·커뮤니케이션별로 정리했습니다.
Lire →나만의 Claude 스킬 만들기 — skill-creator와 mcp-builder 입문
반복하는 작업을 Claude 스킬로 묶는 법. 공식 skill-creator로 스킬을 만들고, mcp-builder로 외부 도구를 연결하는 개념 입문.
Lire →문서 요약을 잘 시키는 프롬프트 5가지
그냥 '요약해줘'는 밋밋합니다. 목적·형식·분량을 지정하면 결과가 확 좋아지는 실전 프롬프트 5가지. 회의록·논문·약관에 바로 쓰세요.
Lire →AI 번역, 어디까지 믿어도 될까 — 잘 쓰는 법과 검수 포인트
AI 번역은 빠르고 자연스럽지만 함정도 있습니다. 신뢰해도 되는 경우와 반드시 사람이 검수해야 하는 경우를 구분하는 실전 기준.
Lire →Claude Skills(클로드 스킬)란? 반복 작업을 자동화하는 AI 활용법
AI에게 매번 같은 설명을 반복하지 않고 '전문 능력'을 붙여 일관되게 일 시키는 방법. Claude Skills 개념과 실전 활용, 그리고 프라이버시까지.
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