Frequently Asked Questions.
Find answers to common questions about our tools, video compression limits, and optimal social media delivery.
info General Questions
Is Haze System completely free to use?
Yes, all web-based tools hosted on Haze System are 100% free for everyone. We support our development and server costs through community donations, server boosters on Discord, and the display advertisements found on our website. Our core mission is to keep powerful video engineering tools accessible to all creators without placing them behind expensive paywalls.
Do you keep copies of my uploaded videos?
Absolutely not. Our architecture is built around WebAssembly (WASM), which means the entire video processing engine runs locally inside your browser on your own device. Your video files are never uploaded to our servers, they are never saved, and we have zero access to your media. This ensures complete privacy and significantly faster processing times since there is no upload/download bandwidth bottleneck.
rocket_launch TikTok Optimizer
Why does TikTok destroy my video quality?
Social media platforms like TikTok process billions of videos per day. To save bandwidth and storage, their ingestion servers run incoming videos through aggressive automated compression algorithms (transcoders). If your video is uploaded in 4K resolution, or with a very high bitrate (e.g., 50 Mbps), the server is forced to downscale and re-encode it. This secondary pass uses fast, low-quality presets that crush detail, introduce blocky artifacts, and often halve your framerate from 60FPS to 30FPS.
How does the 60FPS Optimizer actually work?
The Optimizer uses a technique called lossless remuxing. It runs an FFmpeg engine in your browser that extracts your video and audio streams without altering their visual quality (`-c copy`). It then builds a perfectly compliant MP4 container around them, placing critical metadata (the `moov` atom) at the very beginning of the file—a process known as Web Optimization or Fast Start. By mimicking the exact metadata structure of a native iPhone camera output, it tricks the platform's manual review filter into skipping the destructive secondary compression pass.
Will this get my TikTok account banned?
No. The Optimizer does not exploit glitches, manipulate view counts, or alter the TikTok app itself. It simply structures your MP4 video file according to the highest industry standards (ISO Base Media File Format). You are simply providing TikTok with a perfectly formatted, web-optimized file that their servers prefer over messy, poorly encoded files.
memory Technical & Troubleshooting
What is "Web Optimization" or Fast Start?
In an MP4 file, the "moov atom" acts as the index or table of contents for the video data. By default, many editing programs place this index at the end of the file. This means a video player (or a social media ingestion server) must read the entire file before it can begin playing or processing it. Web Optimization moves this index to the very beginning of the file, allowing playback to begin instantly. This is a critical factor in passing TikTok's quality checks.
I get an "Out of Memory" error. What should I do?
Because our tools run entirely in your web browser, they are subject to the browser's memory limitations. WebAssembly currently struggles with files larger than 1.5GB or 2GB depending on your device's RAM. If you encounter memory errors, ensure your video is rendered at 1080p (not 4K) and try to keep the file size under 500MB before running it through our Optimizer. Close other heavy browser tabs if necessary.
What is the difference between H.264 and HEVC?
H.264 (AVC) and HEVC (H.265) are video compression standards. HEVC is newer and more efficient, meaning it can deliver the same visual quality at half the file size. While modern phones support HEVC perfectly, many older devices do not. Consequently, some social platforms still forcefully transcode HEVC uploads back to H.264 for universal compatibility. For the safest, most untouched upload, we generally recommend exporting in standard H.264.