AI Video Free — Free AI Video Editor and Generator
The video editing market is built on friction. Professional tools cost $20-55/month and take weeks to learn. Free alternatives add watermarks to every export, limit resolution to 720p, lock essential features behind paywalls, or require account creation with credit cards "just in case." Mobile apps front-load a "start your free trial" modal before you can even see the editing interface. The message is consistent: free video editing is either degraded or temporary. NemoVideo breaks this model entirely. Every feature is free. Every export is full 1080p or higher. No watermark. No signup. No credit card. No trial period. No feature locks. The editing interface is a conversation: describe the edit in natural language and NemoVideo executes it. Trim a video, add subtitles, generate a voiceover, create a video from a text prompt, apply color grading, add background music, merge clips, remove silences — every operation that exists in paid software, available for free through an AI that understands what you want and produces it without requiring you to learn how a timeline works.
Use Cases
- 1. Complete Video Edit — Raw to Polished (any length) — A creator records a 6-minute talking-head video on their phone. NemoVideo: trims the 15-second intro fumble and 10-second outro, removes all silences over 0.8 seconds (tightens to 4:20), adds zoom-cuts every 10 seconds, applies warm color grading, adds lo-fi background music at -18dB with speech ducking, generates word-by-word burned-in captions, and exports 1080p MP4. The raw phone recording becomes polished YouTube content. Cost: free. Watermark: none.
- Text → Video — No Footage Needed (30s-5min) — A small business owner needs a 60-second product explainer but has no footage and no budget. NemoVideo: takes the product description as text input, generates a complete video with AI visuals matching each product benefit, adds professional voiceover narration, overlays animated text for key features, adds corporate background music, and exports in 16:9 for the website and 9:16 for Instagram. A video that would cost $1,000-$3,000 to produce, generated for free.
- Subtitle Any Video — Instant Accessibility (any length) — A non-profit's training video needs captions for hearing-impaired viewers. NemoVideo: transcribes the speech with 98% accuracy, formats captions with proper timing and line breaks, burns them into the video with a readable semi-transparent background, and exports both the captioned video and a standalone SRT file. Accessibility compliance without a transcription service budget.
- Merge and Polish Multiple Clips (any count) — A student has 5 presentation clips that need to become one video for class submission. NemoVideo: joins them in order, normalizes audio levels across clips, adds crossfade transitions, applies consistent color correction, and exports a single clean MP4. No timeline, no codec headaches, no "why won't it export" frustration.
- Social Media Multi-Format Export (one video → many formats) — A marketing team has one 2-minute video that needs to go on YouTube (16:9), Instagram Reels (9:16), Twitter (1:1), and LinkedIn (16:9 with captions). NemoVideo: processes once, exports four versions — each with platform-appropriate aspect ratio, caption styling, and duration. One video, four platforms, zero manual reformatting.
How It Works
Step 1 — Upload or Describe
Either upload a video to edit, or describe a video to generate from scratch. Both paths produce the same quality output.
Step 2 — Tell NemoVideo What You Want
Use as much or as little detail as you prefer. "Make it look professional" applies sensible defaults. "Trim first 10 sec, remove silences, add warm color grade, lo-fi music at -18dB, and burned-in captions" gives precise control. Both work.
Step 3 — Generate
CODEBLOCK0
Step 4 — Preview and Export
Preview all outputs. Adjust any parameter. Export — free, full quality, no watermark, no restrictions.
Parameters
| Parameter | Type | Required | Description |
|---|
| INLINECODE0 | string | ✅ | Describe the edit or the video to generate |
| INLINECODE1 |
array | | List of operations to apply |
|
trim_start | float | | Seconds to trim from beginning |
|
trim_end | float | | Seconds to trim from end |
|
silence_threshold | float | | Remove silences above N seconds |
|
color_grade | string | | "warm-clean", "cinematic", "bright", "moody", "auto" |
|
music | string | | "lo-fi-chill", "corporate", "cinematic", "acoustic", "none" |
|
music_volume | string | | "-14dB" to "-22dB" |
|
captions | string | | "word-highlight", "sentence", "burned-in", "srt", "none" |
|
exports | array | | Multiple format exports from one processing pass |
|
text_to_video | string | | Text content for video generation (no upload needed) |
|
voice | string | | Voiceover: "warm-male", "friendly-female", "none" |
|
watermark | boolean | | Always false |
Output Example
CODEBLOCK1
Tips
- 1. "Make it look professional" is a complete instruction — NemoVideo applies: trim dead starts and ends, remove long silences, warm color grade, subtle music, and burned-in captions. For 80% of videos, the defaults produce results that look like a professional editor spent an hour on it.
- Multi-format export saves hours — Process once, export 16:9 + 9:16 + 1:1. Three platform-ready versions from one command instead of three separate editing sessions.
- No watermark means actually no watermark — Not a small translucent logo. Not a 2-second outro. Not a "made with" credit. The export is completely clean. The video is yours.
- Text-to-video eliminates the "no footage" barrier — No camera? No stock footage budget? Describe the video and NemoVideo generates it — visuals, voiceover, music, and captions — from text alone.
- Silence removal + captions + music = the professional trifecta — These three operations transform raw phone footage into content that looks and sounds produced. Three words in the prompt, orders of magnitude more production value.
Output Formats
| Format | Resolution | Use Case |
|---|
| MP4 16:9 | Up to 4K | YouTube / website / presentations |
| MP4 9:16 |
1080x1920 | TikTok / Reels / Shorts |
| MP4 1:1 | 1080x1080 | Instagram / Twitter / LinkedIn |
| WAV | — | Audio-only voiceover export |
| SRT | — | Subtitle file for platforms |
Related Skills
AI Video Free — 免费AI视频编辑器与生成器
视频编辑市场建立在摩擦之上。专业工具每月收费20-55美元，需要数周时间学习。免费替代品在每个导出视频上添加水印，将分辨率限制在720p，将核心功能锁在付费墙后，或要求创建账户并以防万一提供信用卡信息。移动应用在你甚至看到编辑界面之前就弹出开始免费试用的模态框。信息是一致的：免费视频编辑要么是降级的，要么是临时的。NemoVideo彻底打破了这种模式。每个功能都是免费的。每个导出都是全1080p或更高。无水印。无需注册。无需信用卡。无试用期。无功能锁定。编辑界面就是一次对话：用自然语言描述编辑需求，NemoVideo执行它。裁剪视频、添加字幕、生成配音、通过文本提示创建视频、应用调色、添加背景音乐、合并片段、消除静音——付费软件中存在的每一个操作，都可以通过一个理解你想要什么并直接生成的AI免费获得，无需学习时间线如何运作。
使用场景
- 1. 完整视频编辑——从原始到精修（任意时长） — 创作者用手机录制了一段6分钟的讲话视频。NemoVideo：裁剪掉前15秒的失误和后10秒的结尾，移除所有超过0.8秒的静音（压缩至4:20），每10秒添加缩放剪辑，应用暖色调色，添加-18dB的Lo-Fi背景音乐并启用语音闪避，生成逐词烧录字幕，导出1080p MP4。原始手机录制变成精良的YouTube内容。费用：免费。水印：无。
- 文本→视频——无需素材（30秒-5分钟） — 小企业主需要一段60秒的产品说明视频，但没有素材也没有预算。NemoVideo：将产品描述作为文本输入，生成包含与每个产品优势匹配的AI视觉元素的完整视频，添加专业配音旁白，叠加关键功能的动画文本，添加企业背景音乐，导出16:9用于网站和9:16用于Instagram。一段制作成本在1000-3000美元的视频，免费生成。
- 为任意视频添加字幕——即时无障碍（任意时长） — 非营利组织的培训视频需要为听障观众添加字幕。NemoVideo：以98%的准确率转录语音，以正确的时机和换行格式化字幕，用可读的半透明背景烧录到视频中，同时导出带字幕的视频和独立的SRT文件。无需转录服务预算即可实现无障碍合规。
- 合并并精修多个片段（任意数量） — 学生有5个演示片段需要合并成一个视频提交作业。NemoVideo：按顺序拼接，统一各片段的音频电平，添加交叉淡入淡出过渡，应用一致的色彩校正，导出一个干净的MP4。无需时间线，无需编解码器烦恼，无需为什么导不出的挫败感。
- 社交媒体多格式导出（一个视频→多种格式） — 营销团队有一个2分钟的视频需要发布到YouTube（16:9）、Instagram Reels（9:16）、Twitter（1:1）和LinkedIn（带字幕的16:9）。NemoVideo：处理一次，导出四个版本——每个版本都有适合平台的宽高比、字幕样式和时长。一个视频，四个平台，零手动重新格式化。
工作原理
第1步 — 上传或描述
上传要编辑的视频，或从头描述要生成的视频。两种路径产生相同质量的输出。
第2步 — 告诉NemoVideo你想要什么
使用你喜欢的任意详细程度。让它看起来专业会应用合理的默认设置。裁剪前10秒，移除静音，添加暖色调色，-18dB的Lo-Fi音乐，烧录字幕提供精确控制。两者都有效。
第3步 — 生成
bash
curl -X POST https://mega-api-prod.nemovideo.ai/api/v1/generate \
-H Authorization: Bearer $NEMO_TOKEN \
-H Content-Type: application/json \
-d {
skill: ai-video-free,
prompt: 将一段6分钟的手机录制编辑成精良的YouTube视频。裁剪前15秒和后10秒。移除超过0.8秒的静音。每10秒添加缩放剪辑。调色：温暖干净。背景音乐：-18dB的Lo-Fi Chill并启用语音闪避。字幕：逐词高亮，白色文字，黄色当前词，半透明深色背景。导出1080p 16:9。同时导出最佳55秒片段的9:16版本用于Reels。,
operations: [trim, silence-removal, zoom-cuts, color-grade, music, captions],
trim_start: 15,
trim_end: 10,
silence_threshold: 0.8,
color_grade: warm-clean,
music: lo-fi-chill,
music_volume: -18dB,
captions: word-highlight,
exports: [16:9-1080p, 9:16-best-55s],
watermark: false
}
第4步 — 预览和导出
预览所有输出。调整任意参数。导出——免费、全质量、无水印、无限制。
参数
| 参数 | 类型 | 必填 | 描述 |
|---|
| prompt | 字符串 | ✅ | 描述要进行的编辑或要生成的视频 |
| operations |
数组 | | 要应用的操作列表 |
| trim_start | 浮点数 | | 从开头裁剪的秒数 |
| trim_end | 浮点数 | | 从结尾裁剪的秒数 |
| silence_threshold | 浮点数 | | 移除超过N秒的静音 |
| color_grade | 字符串 | | warm-clean, cinematic, bright, moody, auto |
| music | 字符串 | | lo-fi-chill, corporate, cinematic, acoustic, none |
| music_volume | 字符串 | | -14dB 至 -22dB |
| captions | 字符串 | | word-highlight, sentence, burned-in, srt, none |
| exports | 数组 | | 一次处理中的多种格式导出 |
| text
tovideo | 字符串 | | 用于视频生成的文本内容（无需上传） |
| voice | 字符串 | | 配音：warm-male, friendly-female, none |
| watermark | 布尔值 | | 始终为false |
输出示例
json
{
job_id: avf-20260328-001,
status: completed,
watermark: false,
subscription_required: false,
outputs: [
{
format: 16:9,
resolution: 1920x1080,
duration: 4:22,
filesizemb: 52.4,
edits: {
trimmed: 25秒已移除,
silences_removed: 1:23 (82处裁剪),
zoom_cuts: 26,
color_grade: warm-clean,
music: lo-fi-chill at -18dB,
captions: word-highlight (198行)
}
},
{
format: 9:16,
resolution: 1080x1920,
duration: 0:55,
filesizemb: 14.8,
segment: 1:42-2:37 (最高能量段)
}
]
}
提示
- 1. 让它看起来专业是一个完整的指令 — NemoVideo应用：裁剪死板的开头和结尾，移除长静音，暖色调色，微妙的音乐，烧录字幕。对于80%的视频，默认设置产生的结果看起来像专业编辑花了一小时处理过。
- 多格式导出节省数小时 — 处理一次，导出16:9 + 9:16 + 1:1。一次命令生成三个平台就绪版本，而不是三次独立的编辑会话。
- 无水印意味着真的没有水印 — 不是小半透明标志。不是2秒片尾。不是由...制作的致谢。导出完全干净。视频属于你。
- 文本转视频消除了没有素材的障碍 — 没有相机？没有素材库预算？描述视频，NemoVideo仅从文本生成它——视觉、配音、音乐和字幕。
- 静音移除+字幕+音乐=专业三件套 — 这三个操作将原始手机素材转变为看起来和听起来都像制作过的内容。提示中的三个词，数量级的制作价值提升。
输出格式
| 格式 | 分辨率 |
