{"id":350,"date":"2026-08-11T17:45:00","date_gmt":"2026-08-11T14:45:00","guid":{"rendered":"https:\/\/jwizard.com\/blog\/?p=350"},"modified":"2026-07-27T10:47:39","modified_gmt":"2026-07-27T07:47:39","slug":"mac-cleaner-app-with-video-compressor-comparison-pros-cons-and-safer-alternatives-fr","status":"publish","type":"post","link":"https:\/\/jwizard.com\/blog\/fr\/mac-cleaner-app-with-video-compressor-comparison-pros-cons-and-safer-alternatives-fr\/","title":{"rendered":"Compresser ses vid\u00e9os sur Mac : quel outil lib\u00e8re vraiment de la place ?"},"content":{"rendered":"\n<p>Les fichiers vid\u00e9o repr\u00e9sentent l&#8217;essentiel de l&#8217;espace disque occup\u00e9 sur un Mac : une heure de tournage en 4K p\u00e8se environ 84 Go avec un encodage standard. En \u00e9tudiant les sc\u00e9narios classiques de saturation du stockage, les ing\u00e9nieurs de JWizard ont constat\u00e9 un chiffre frappant : les utilisateurs perdent jusqu&#8217;\u00e0 70 % des gains potentiels, tout simplement parce qu&#8217;ils choisissent un outil de compression vid\u00e9o sur Mac sans comprendre comment fonctionne r\u00e9ellement la compression dans chacun d&#8217;eux. Nous avons donc test\u00e9 trois approches \u2013 QuickTime Player, CleanMyMac et CleanMyPhone \u2013 pour identifier leurs limites respectives, avant d&#8217;ajouter JWizard Cleaner comme alternative offrant un aper\u00e7u du r\u00e9sultat avant l&#8217;enregistrement.<\/p>\n<h2>Sommaire<\/h2>\n\n<ul>\n<li><a href=\"#quelle-place-occupent-r\u00e9ellement-vos-vid\u00e9os-sur-mac\">Quelle place occupent r\u00e9ellement vos vid\u00e9os sur Mac<\/a><\/li>\n<li><a href=\"#pourquoi-les-outils-int\u00e9gr\u00e9s-ne-suffisent-pas-toujours\">Pourquoi les outils int\u00e9gr\u00e9s ne suffisent pas toujours<\/a><\/li>\n<li><a href=\"#comparatif-des-outils-de-compression-vid\u00e9o-sur-mac\">Comparatif des outils de compression vid\u00e9o sur Mac<\/a><\/li>\n<li><a href=\"#quicktime-player-rapide-mais-sans-r\u00e9el-contr\u00f4le\">QuickTime Player : rapide, mais sans r\u00e9el contr\u00f4le<\/a><\/li>\n<li><a href=\"#jwizard-cleaner-pour-mac\">JWizard Cleaner pour Mac<\/a><\/li>\n<li><a href=\"#questions-fr\u00e9quentes\">Questions fr\u00e9quentes<\/a><\/li>\n<\/ul>\n<p><img decoding=\"async\" alt=\"Rendu 3D d'un ordinateur portable ferm\u00e9 sur un bureau blanc avec un cube de donn\u00e9es violet\" src=\"https:\/\/jwizard.com\/blog\/assets\/macbook-violet-cube-white-desk.jpg\" style=\"max-height:50vh;width:auto;object-fit:contain;\" \/><\/p>\n<h2 id=\"quelle-place-occupent-r\u00e9ellement-vos-vid\u00e9os-sur-mac\">Quelle place occupent r\u00e9ellement vos vid\u00e9os sur Mac<\/h2>\n<p>Une vid\u00e9o 4K occupe environ 1,4 Go par minute avec un encodage H.264 classique. En revanche, passer au HEVC fait chuter ce chiffre \u00e0 375 Mo par minute \u2013 soit une \u00e9conomie d&#8217;environ 73 % sans toucher \u00e0 la r\u00e9solution. \u00c0 titre de comparaison, une vid\u00e9o 1080p \u00e0 30 fps avec un d\u00e9bit de 8 Mbit\/s p\u00e8se environ 60 Mo par minute.<\/p>\n<p>Ces chiffres expliquent pourquoi l&#8217;optimisation du stockage de macOS \u2013 l&#8217;envoi des fichiers vers iCloud et la suppression des anciens t\u00e9l\u00e9chargements \u2013 ne r\u00e9sout pas tout. En effet, les fichiers vid\u00e9o stock\u00e9s localement restent sur le disque tant que l&#8217;utilisateur ne les compresse ou ne les supprime pas manuellement.<\/p>\n<h2 id=\"pourquoi-les-outils-int\u00e9gr\u00e9s-ne-suffisent-pas-toujours\">Pourquoi les outils int\u00e9gr\u00e9s ne suffisent pas toujours<\/h2>\n<p>macOS optimise le stockage de fa\u00e7on automatique : il d\u00e9place les anciens fichiers vers iCloud et supprime les films d\u00e9j\u00e0 visionn\u00e9s dans l&#8217;app Apple TV. Ce m\u00e9canisme, cependant, ne concerne pas les vid\u00e9os film\u00e9es avec l&#8217;appareil photo ou t\u00e9l\u00e9charg\u00e9es depuis des sources externes. C&#8217;est donc bien ce type de contenu qui finit par saturer le disque.<\/p>\n<p>Pour compresser ces fichiers, il faut un outil d\u00e9di\u00e9 \u2013 natif ou tiers. La diff\u00e9rence entre les solutions est r\u00e9elle : certaines ne changent que la r\u00e9solution, d&#8217;autres r\u00e9encodent sans perte visible de qualit\u00e9, et d&#8217;autres encore affichent un aper\u00e7u de la taille finale avant m\u00eame de lancer l&#8217;op\u00e9ration.<\/p>\n<h2 id=\"comparatif-des-outils-de-compression-vid\u00e9o-sur-mac\">Comparatif des outils de compression vid\u00e9o sur Mac<\/h2>\n<p>Pour choisir un bon outil de compression vid\u00e9o sur Mac, le crit\u00e8re d\u00e9cisif reste la pr\u00e9visibilit\u00e9 du r\u00e9sultat : l&#8217;utilisateur doit pouvoir voir la taille finale avant d&#8217;enregistrer le fichier, sinon la compression devient une simple loterie.<\/p>\n<div style=\"border-radius:10px;overflow:hidden;border:2px solid #c8c8c8;display:inline-block;width:100%;box-sizing:border-box;\"><table style=\"border-collapse:collapse;width:100%;color:#191424;font-size:14px;\">\n<thead>\n<tr>\n<th style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#e8e8e8;text-align:left;word-break:break-word;min-width:80px;\">Crit\u00e8re<\/th>\n<th style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#e8e8e8;text-align:left;word-break:break-word;min-width:80px;\">CleanMyMac<\/th>\n<th style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#e8e8e8;text-align:left;word-break:break-word;min-width:80px;\">CleanMyPhone<\/th>\n<th style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#e8e8e8;text-align:left;word-break:break-word;min-width:80px;\">JWizard Cleaner<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Compression vid\u00e9o<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Non<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Oui<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Oui<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Aper\u00e7u de la taille finale<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Non pr\u00e9cis\u00e9<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Non pr\u00e9cis\u00e9<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Oui<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Pr\u00e9r\u00e9glages de qualit\u00e9<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Non pr\u00e9cis\u00e9<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">\u00c9lev\u00e9e \/ Faible \/ Moyenne<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Sans perte \/ Compression maximale<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Regroupement par taille et date<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Non pr\u00e9cis\u00e9<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Oui<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Oui<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Enregistrement \u00e0 c\u00f4t\u00e9 de l&#8217;original<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Non pr\u00e9cis\u00e9<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Non<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Oui<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Garantie de r\u00e9duction du fichier<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Non pr\u00e9cis\u00e9<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Oui<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Oui<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">Plateformes<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">macOS<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">iOS\/Android<\/td>\n<td style=\"border:1.5px solid #c8c8c8;padding:10px 14px;background-color:#f5f5f5;word-break:break-word;min-width:80px;\">macOS, Windows, Android, iOS<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<p>Parmi les solutions \u00e9tudi\u00e9es, seul JWizard Cleaner affiche une taille approximative du fichier avant l&#8217;enregistrement et permet de choisir entre qualit\u00e9 et niveau de compression. CleanMyMac, quant \u00e0 lui, g\u00e8re bien le nettoyage de base du disque, mais ne propose aucune fonction de compression vid\u00e9o. CleanMyPhone compresse effectivement les vid\u00e9os, mais les r\u00e9sultats varient selon <strong>le format du fichier<\/strong> et <strong>le pr\u00e9r\u00e9glage choisi<\/strong>. JWizard Cleaner est une application sous licence payante, comptant plus de 50 000 installations sur quatre plateformes.<\/p>\n<p>Les informations concernant les concurrents proviennent de sources publiques disponibles au moment de la publication et peuvent ne plus refl\u00e9ter les fonctionnalit\u00e9s actuelles des produits.<\/p>\n<h2 id=\"quicktime-player-rapide-mais-sans-r\u00e9el-contr\u00f4le\">QuickTime Player : rapide, mais sans r\u00e9el contr\u00f4le<\/h2>\n<p>Sur macOS 15, QuickTime Player permet d&#8217;exporter une vid\u00e9o en r\u00e9solution r\u00e9duite via <strong>Fichier \u2192 Exporter sous<\/strong>. Les options disponibles se limitent \u00e0 720p et 480p. Le r\u00e9encodage se fait cependant sans aper\u00e7u de la taille finale et sans pr\u00e9r\u00e9glage \u00ab sans perte de qualit\u00e9 \u00bb.<\/p>\n<p>La proc\u00e9dure est simple :<\/p>\n<ul>\n<li>Ouvrez le fichier vid\u00e9o dans QuickTime Player.<\/li>\n<li>Allez dans <strong>Fichier \u2192 Exporter sous<\/strong>.<\/li>\n<li>Choisissez la r\u00e9solution : <strong>720p<\/strong> ou <strong>480p<\/strong>.<\/li>\n<li>Cliquez sur <strong>Enregistrer<\/strong> et attendez la fin de l&#8217;export.<\/li>\n<\/ul>\n<p>\u26a0\ufe0f QuickTime n&#8217;affiche pas la taille du fichier avant l&#8217;export et ne propose aucun arbitrage entre qualit\u00e9 et niveau de compression. Si l&#8217;objectif est de conserver la r\u00e9solution d&#8217;origine tout en r\u00e9duisant le poids du fichier, cette m\u00e9thode ne convient donc pas.<\/p>\n<p>Par ailleurs, si la t\u00e2che consiste \u00e0 <a href=\"https:\/\/jwizard.com\/blog\/fr\/delete-apps-from-mac-without-leftovers-causes-and-step-by-step-fixes-fr\/\" rel=\"noopener\">d\u00e9sinstaller des applications sur Mac<\/a> r\u00e9guli\u00e8rement et \u00e0 lib\u00e9rer de l&#8217;espace de fa\u00e7on syst\u00e9matique plut\u00f4t qu&#8217;occasionnelle, l&#8217;export manuel via QuickTime devient vite une contrainte r\u00e9p\u00e9titive.<\/p>\n<p>Comment automatiser la compression tout en visualisant imm\u00e9diatement l&#8217;espace gagn\u00e9 ?<\/p>\n<h2 id=\"jwizard-cleaner-pour-mac\">JWizard Cleaner pour Mac<\/h2>\n<p><img decoding=\"async\" alt=\"\u00c9cran Smart Scan de JWizard Cleaner pour analyser votre ordinateur\" src=\"http:\/\/jwizard.com\/blog\/wp-content\/uploads\/2026\/07\/jwizard-cleaner-windows-smart-scan-fr.png\" style=\"max-height:50vh;width:auto;object-fit:contain;\" \/><\/p>\n<p>Pour les utilisateurs qui veulent garder la main sur le r\u00e9sultat, JWizard Cleaner d\u00e9tecte tous les fichiers vid\u00e9o pr\u00e9sents sur le Mac et les regroupe par taille et par date \u2013 ce qui permet de rep\u00e9rer facilement lesquels compresser en priorit\u00e9.<\/p>\n<ul>\n<li><strong>Regroupement des vid\u00e9os<\/strong> par taille (plus de 2 Go, plus de 1 Go, plus de 500 Mo, moins de 500 Mo) et par date de tournage<\/li>\n<li><strong>Aper\u00e7u<\/strong> de chaque vid\u00e9o avant compression<\/li>\n<li><strong>Deux pr\u00e9r\u00e9glages :<\/strong> \u00ab Sans perte \u00bb (r\u00e9solution d&#8217;origine, r\u00e9encodage plus efficace) et \u00ab Compression maximale \u00bb (720p, jusqu&#8217;\u00e0 60 fps)<\/li>\n<li><strong>Affichage du poids approximatif<\/strong> du fichier apr\u00e8s compression \u2013 avant m\u00eame l&#8217;enregistrement<\/li>\n<li><strong>Choix du r\u00e9sultat final :<\/strong> conserver le fichier compress\u00e9 \u00e0 c\u00f4t\u00e9 de l&#8217;original ou remplacer ce dernier<\/li>\n<\/ul>\n<p>Une vid\u00e9o 4K correctement compress\u00e9e occupe 3 \u00e0 4 fois moins d&#8217;espace, tout en restant visuellement indiscernable de l&#8217;original sur la plupart des \u00e9crans. Le choix de l&#8217;outil d\u00e9pend donc surtout de la fr\u00e9quence de la t\u00e2che : un export ponctuel se fait plus simplement via QuickTime, tandis qu&#8217;une biblioth\u00e8que vid\u00e9o volumineuse et r\u00e9guli\u00e8rement aliment\u00e9e demande un outil offrant aper\u00e7u et regroupement des fichiers. Enfin, si vous cherchez quel <a href=\"https:\/\/jwizard.com\/blog\/fr\/one-cleaning-app-for-mac-windows-android-and-iphone-the-complete-guide-fr\/\" rel=\"noopener\">logiciel de nettoyage Mac<\/a> couvre plusieurs besoins \u00e0 la fois \u2013 nettoyage, suppression des doublons et compression vid\u00e9o \u2013, mieux vaut comparer les solutions sur leurs capacit\u00e9s techniques plut\u00f4t que sur leur seule interface.<\/p>\n<h2 id=\"questions-fr\u00e9quentes\">Questions fr\u00e9quentes<\/h2>\n\n<div class=\"schema-faq wp-block-yoast-faq-block\">\n<div class=\"schema-faq-section\" id=\"faq-question-df3d741e80\"><details><summary style=\"color:#191424;\"><strong>Peut-on compresser une vid\u00e9o sur Mac sans perte de qualit\u00e9 ?<\/strong><\/summary><p class=\"schema-faq-answer\">Tout r\u00e9encodage entra\u00eene une perte de qualit\u00e9, \u00e0 des degr\u00e9s divers. Le pr\u00e9r\u00e9glage \u00ab Sans perte \u00bb propos\u00e9 par les outils sp\u00e9cialis\u00e9s minimise toutefois cette perte gr\u00e2ce \u00e0 un codec plus performant \u2013 le HEVC plut\u00f4t que le H.264, par exemple. Sur l&#8217;\u00e9cran d&#8217;un smartphone ou d&#8217;une tablette, la diff\u00e9rence reste pratiquement invisible.<\/p><\/details><\/div>\n<div class=\"schema-faq-section\" id=\"faq-question-86637f6cee\"><details><summary style=\"color:#191424;\"><strong>En quoi un outil de compression vid\u00e9o sur Mac diff\u00e8re-t-il de QuickTime ?<\/strong><\/summary><p class=\"schema-faq-answer\">QuickTime se contente de modifier la r\u00e9solution et n&#8217;affiche pas la taille finale avant l&#8217;export. Un outil de compression d\u00e9di\u00e9, \u00e0 l&#8217;inverse, propose un choix de pr\u00e9r\u00e9glages, un aper\u00e7u du r\u00e9sultat et la possibilit\u00e9 d&#8217;enregistrer le fichier \u00e0 c\u00f4t\u00e9 de l&#8217;original \u2013 sans risquer de perdre le fichier source.<\/p><\/details><\/div>\n<div class=\"schema-faq-section\" id=\"faq-question-d76ddac452\"><details><summary style=\"color:#191424;\"><strong>Pourquoi la compression via CleanMyPhone augmente-t-elle parfois la taille du fichier ?<\/strong><\/summary><p class=\"schema-faq-answer\">La compression agit sur le d\u00e9bit binaire : si le fichier d&#8217;origine est d\u00e9j\u00e0 encod\u00e9 de fa\u00e7on optimale, un nouveau r\u00e9encodage ajoute simplement des donn\u00e9es suppl\u00e9mentaires. Le fichier final peut alors devenir plus lourd qu&#8217;avant. C&#8217;est pr\u00e9cis\u00e9ment pour cette raison qu&#8217;il est essentiel de conna\u00eetre la taille approximative du r\u00e9sultat avant de lancer la compression.<\/p><\/details><\/div>\n<div class=\"schema-faq-section\" id=\"faq-question-38f5d11412\"><details><summary style=\"color:#191424;\"><strong>Quel outil de compression vid\u00e9o sur Mac affiche la taille du fichier avant l&#8217;enregistrement ?<\/strong><\/summary><p class=\"schema-faq-answer\">Parmi les applications \u00e9tudi\u00e9es, seul JWizard Cleaner propose un aper\u00e7u de la taille finale avant l&#8217;enregistrement. Cette fonction permet d&#8217;\u00e9valuer l&#8217;\u00e9conomie d&#8217;espace avant que le fichier d&#8217;origine ne soit remplac\u00e9.<\/p><\/details><\/div>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Comparatif des outils de compression vid\u00e9o sur Mac : QuickTime, CleanMyMac, CleanMyPhone et JWizard Cleaner. Aper\u00e7u de taille, pr\u00e9r\u00e9glages et gain d&#8217;espace r\u00e9el.<\/p>\n","protected":false},"author":1,"featured_media":351,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/jwizard.com\/blog\/assets\/macbook-violet-cube-white-desk.jpg","fifu_image_alt":"Rendu 3D d'un ordinateur portable ferm\u00e9 sur un bureau blanc avec un cube de donn\u00e9es violet","footnotes":""},"categories":[402],"tags":[336,307],"class_list":["post-350","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mac-fr","tag-video-compression-fr-en","tag-gallery-cleanup-fr-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Compression vid\u00e9o sur Mac : quel outil choisir ?<\/title>\n<meta name=\"description\" content=\"Comparatif des outils de compression vid\u00e9o sur Mac : QuickTime, CleanMyMac, CleanMyPhone et JWizard Cleaner. 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