Convert any document to video with AI
Knowlify is a free AI video generator that transforms your documents, presentations, and text into narrated animated videos. Upload any file—PDF, PowerPoint, Word, or plain text—and get a professional video in minutes. Preview free with a watermark; export HD from $29/mo.
Most Popular
Popular document-to-video converters
Browser utilities
Free video tools that run on your device
Merge, compress, convert, and plan without uploading files to a server. Each page includes how-to steps and FAQ markup for clear answers.
Edit & combine
Trim, merge, and compress video files in your browser
Free MP4 Combiner
Merge multiple MP4 files into one video in your browser.
Free Video Compressor
Compress MP4 files to a smaller size without leaving your browser.
Free Video Trimmer
Cut a video to an exact start and end time in your browser.
Discord Video Compressor
Compress video under Discord’s 8 MB (or Nitro 25 MB) upload limit.
Video Looper
Loop a video clip multiple times into one MP4 in your browser.
Merge MP4 Files
Merge multiple MP4 videos into one file in your browser.
Combine Videos Online
Combine multiple videos into one MP4 online in your browser.
8MB Video Compressor
Compress video under 8 MB for Discord and other tight upload limits.
Convert
Turn video into GIF, audio, captions, and more
Free Video to GIF Converter
Convert a short video clip into an animated GIF.
Free Audio Extractor
Extract MP3 or WAV audio from an MP4 video file.
Free SRT Subtitle Generator
Turn a plain transcript into timed SRT captions.
M4A to MP3 Converter
Convert M4A audio to MP3 in your browser. Free, no upload.
WAV to MP3 Converter
Convert WAV audio to compressed MP3 in your browser.
GIF Compressor
Compress GIF file size in your browser without a server upload.
MKV to MP4 Converter
Convert MKV video to MP4 in your browser.
Extract Audio from Video
Extract audio from any video file to MP3 or WAV in your browser.
AVI to MP4 Converter
Convert AVI video files to MP4 in your browser.
HEVC to MP4 Converter
Convert HEVC/H.265 video to widely compatible MP4 (H.264).
Video Frame Extractor
Extract a still PNG frame from a video at any timestamp in your browser.
SRT to VTT Converter
Convert SRT captions to WebVTT for HTML5 video players.
VTT to SRT Converter
Convert WebVTT captions back to SRT for editors and caption tools.
TS to MP4 Converter
Convert MPEG-TS (.ts) video streams to MP4 in your browser.
MP4 to MP3 Converter
Convert MP4 video to MP3 audio in your browser.
MP4 to GIF Converter
Convert MP4 video clips to animated GIFs in your browser.
MOV to MP4 Converter
Convert Apple MOV videos to MP4 in your browser.
Video to MP3 Converter
Convert any common video file to MP3 audio in your browser.
Analyze
Inspect metadata, packages, colors, and accessibility
Free Video Metadata Viewer
Inspect resolution, duration, codec, and file size of a video.
Free SCORM Package Checker
Validate a SCORM ZIP for manifest, launch file, and basic structure.
Video Aspect Ratio Guide
Preview how a frame crops for 16:9, 9:16, 1:1, and more.
Video Thumbnail Tester
Blur-test a thumbnail to see if it still reads at a glance.
Brand Color Extractor
Pull a color palette from a logo for video branding.
Caption Accessibility Checker
Check caption text for length, reading speed, and plain language.
YouTube Thumbnail Downloader
Download YouTube video thumbnails in HD from a URL or video ID.
Plan & estimate
Estimate runtime, ROI, briefs, and narration length
Script to Video Length Calculator
Estimate video runtime from script word count and speaking rate.
Training Video ROI Calculator
Estimate time and cost saved by replacing live training with video.
Reading Time to Narration Calculator
Convert article reading time into estimated voiceover duration.
Document to Video Brief Generator
Paste a doc and get a scene outline with estimated runtime.
Voiceover Script Rewriter
Free AI voiceover rewriter for clearer spoken narration.
Aspect Ratio Calculator
Calculate video dimensions for 16:9, 9:16, 1:1, 4:5, and more.
YouTube Name Generator
AI YouTube title ideas from your topic keywords. Free, no signup.
Script Timer
Estimate how long a script will take to narrate at your speaking pace.
Words to Minutes Calculator
Convert word count to speaking minutes for video and presentations.
Social Video Size Checker
Check resolution and file size against YouTube, TikTok, Reels, and Discord limits.
Shot List Template
Turn story beats into a downloadable CSV shot list for video production.
Video Bitrate Calculator
Estimate bitrate from file size or file size from bitrate and duration.
Video File Size Calculator
Predict video file size from bitrate and duration before you export.
YouTube Tag Generator
Free AI YouTube tag generator from your title and description.
YouTube Title Generator
Free AI YouTube title generator for SEO-friendly, clickable drafts.
YouTube Description Generator
Free AI YouTube description generator with bullets, CTA, and timestamps.
Document Converters
Convert PDF, Word, and other document formats to video
Presentation Converters
Turn PowerPoint, Google Slides, and presentations into video
Text to Video
Convert articles, scripts, notes, and text content to video
Text to Video
Convert .txt files
Script to Video
Convert .txt, .doc, .docx, .pdf files
Article to Video
Convert .txt, .doc, .docx, .pdf files
Blog Post to Video
Convert .txt, .doc, .docx files
Notes to Video
Convert .txt, .md files
Outline to Video
Convert .txt, .doc, .docx files
Markdown to Video
Convert .md, .markdown files
Business Document Converters
Transform SOPs, training manuals, policies, and business docs to video
SOP to Video
Convert .pdf, .doc, .docx files
Training Manual to Video
Convert .pdf, .doc, .docx files
Employee Handbook to Video
Convert .pdf, .doc, .docx files
Policy Document to Video
Convert .pdf, .doc, .docx files
Onboarding Document to Video
Convert .pdf, .doc, .docx files
Ebook to Video
Convert .pdf, .epub files
Whitepaper to Video
Convert .pdf, .doc, .docx files
Case Study to Video
Convert .pdf, .doc, .docx files
Report to Video
Convert .pdf, .doc, .docx, .pptx files
How it works
Any document to video in 3 steps
Upload your document
Drop any file—PDF, PowerPoint, Word, Google Docs export, or paste text directly. Knowlify reads the content and structure.
AI generates your video
The AI writes a script from your content, generates professional narration, and creates animated visuals. Processing takes 2-5 minutes.
Preview and export
Watch your video preview (free with watermark). Edit the script if needed. Export HD without watermark on any paid plan.
FAQ
Free tools questions
What free video tools does Knowlify offer?+
Knowlify offers document-to-video converters (PDF, PowerPoint, Word, and more) plus browser utilities for merge, compress, convert, captions, and planning. Utilities process media locally when possible.
Do free browser utilities upload my files?+
No. Conversion and compression utilities run in your browser with FFmpeg.wasm. Files stay on your device unless you download the result.
Is Knowlify free to try for document-to-video?+
Yes. You can preview narrated animated videos for free with a watermark. HD export without watermark starts on paid plans.
Where can I find the MP4 combiner or Discord compressor?+
Open the Browser utilities section on this page, or go directly to /tools/mp4-combiner and /tools/discord-video-compressor.
Pricing
Free to preview, $29–$399/mo for HD export
All document-to-video tools are free to try. Preview any conversion with a watermark. Remove the watermark and export in HD on paid plans. Unlimited videos on all plans.
Ready to convert your first document to video?
Pick any tool above and upload your file. Get a video in minutes. Free to preview.