The latest articles on DEV Community by omitsu (@omitsudev). https://dev.to/omitsudev https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3842778%2Fdd6cbec3-f176-4eba-81d1-b23d8c0efde7.png https://dev.to/omitsudev en omitsu Wed, 25 Mar 2026 08:15:19 +0000 https://dev.to/omitsudev/i-built-a-free-ffmpeg-command-generator-13-operations-no-memorization-2heb https://dev.to/omitsudev/i-built-a-free-ffmpeg-command-generator-13-operations-no-memorization-2heb <p>Every time I use FFmpeg, the same thing happens: </p> <ol> <li>Open browser</li> <li>Google "ffmpeg compress video"</li> <li>Copy-paste from Stack Overflow4. Tweak flags until it works</li> <li>Forget everything by next week So I built a tool that skips all of that. </li> </ol> <h2> FFmpeg Command Generator </h2> <p><strong><a href="https://32blog.com/tools/ffmpeg-command-generator" rel="noopener noreferrer">Try it here →</a></strong> <br> Pick what you want to do, adjust the parameters, and get a ready-to-use FFmpeg command. No memorization required. </p> <h3> What it supports </h3> <ul> <li> <strong>Format conversion</strong> — MP4, MKV, WebM, MOV, AVI, and more </li> <li> <strong>Video compression</strong> — H.264, H.265, AV1 with CRF and preset controls</li> <li> <strong>Audio extraction</strong> — MP3, AAC, WAV, FLAC with bitrate selection- <strong>Trim / Cut</strong> — Start and end time with optional re-encode toggle</li> <li> <strong>Merge</strong> — Concat demuxer with codec selection- <strong>Resize</strong> — Width/height with aspect ratio lock</li> <li> <strong>GIF creation</strong> — FPS, width, palette optimization toggle </li> <li> <strong>Watermark</strong> — 9-position grid with margin control</li> <li> <strong>Subtitles</strong> — Soft sub (toggleable) or hard sub (burned in)</li> <li> <strong>Speed change</strong> — 0.25x to 4x with automatic atempo chaining</li> <li> <strong>Frame extraction</strong> — Single frame, interval, or keyframes only </li> <li> <strong>Crop</strong> — Width, height, X/Y coordinates- <strong>Noise removal</strong> — Video (hqdn3d) or audio (afftdn), 3 strength levels</li> </ul> <h3> Conflict detectionThe generator warns you about incompatible options before you run anything: </h3> <ul> <li>H.265 + ultrafast preset → quality warning</li> <li>GIF width &gt; 800px → file size warning</li> <li>Odd resolution values → codec compatibility warning</li> <li> <p>CRF &gt; 35 → visible quality degradation warning </p> <h3> Every option is explained </h3> <p>Each generated command comes with a line-by-line breakdown of what every flag does. You're not just copying a command — you're learning FFmpeg.</p> <h3> Available in 3 languages </h3> <p>English, Japanese, and Spanish. The tool, explanations, and SEO content are fully localized (not just translated). </p> <h2> Tech stack </h2> </li> <li><p>Next.js 16 + App Router</p></li> <li><p>TypeScript</p></li> <li><p>Tailwind CSS v4</p></li> <li> <p>Client-side only — no server calls, no file uploads</p> <h2> CLI version </h2> <p>If you prefer the terminal, check out <a href="https://github.com/omitsu-dev/ffmpeg-quick" rel="noopener noreferrer">ffmpeg-quick</a> — same operations as presets you can run with <code>npx</code>:<br> </p> </li> </ul> <div class="highlight js-code-highlight"> <pre class="highlight shell"><code>npx ffmpeg-quick compress input.mp4 npx ffmpeg-quick gif input.mp4 <span class="nt">-s</span> 10 <span class="nt">-d</span> 3 npx ffmpeg-quick watermark input.mp4 logo.png </code></pre> </div> <h2> Try it </h2> <p><a href="https://32blog.com/en/tools/ffmpeg-command-generator" rel="noopener noreferrer">https://32blog.com/en/tools/ffmpeg-command-generator</a> </p> <p>Built by <a href="https://32blog.com/en/about" rel="noopener noreferrer">https://32blog.com/en/about</a> as part of <a href="https://32blog.com" rel="noopener noreferrer">https://32blog.com</a> — a multilingual tech blog covering FFmpeg, security, Next.js, and AI-assisted development. <br> Feedback welcome. What operations would you add?</p> ffmpeg webdev opensource