Browser Compatibility
Browser support is specific to a workflow. Installing the extension does not mean that every codec, save method or recording mode is available. Use the checks below before starting a long job.
Browser support overview
| Browser | Extension | Web tools | Large directory-output jobs |
|---|---|---|---|
| Desktop Chrome / Edge | Available | Depends on the required codecs and APIs | Recommended when the directory picker is available |
| Desktop Firefox | Available | Compatible tools can run locally | The directory-writing queue requires Chrome or Edge |
| Other Chromium browsers | Check the store and browser policy | Check each tool on the device | Confirm that directory selection is offered |
| Edge mobile | Supported; installation and available features depend on the Edge version on your device | Depends on the tool's APIs, codecs and device performance | No desktop directory-writing queue; use desktop Chrome or Edge for long jobs |
| Other mobile browsers | Not currently listed as supported FlowPick browsers | Tool availability is not guaranteed | No desktop directory-writing workflow |
| Safari (including iPhone/iPad) | Not supported | Outside FlowPick's supported browsers | Not supported |
Install the current stable browser and extension from the links on the homepage. FlowPick supports Edge mobile, but mobile systems can pause background jobs and have tighter memory and storage limits. Use desktop Chrome or Edge for large files or queues that write to a chosen folder. Safari is not supported. This page does not promise one minimum browser version for every tool.
Check the feature you need
| Workflow | Check before starting | If unavailable |
|---|---|---|
| Download queue | A directory picker appears and permission is granted | Open desktop Chrome or Edge |
| Local conversion | The tool accepts the input codec and offers the output format | Try another supported output or browser |
| Audio/video transcription | The model downloads and the selected processing mode starts | Try the smaller model or CPU mode |
| GPU processing | The tool reports a usable GPU backend | Use the offered CPU mode; speed will differ |
| Screen recording | The browser offers a source and audio sharing | Use an available capture source; audio is not guaranteed |
| Source preview | The codec plays and the source permits access | Download and inspect the result independently |
Saving and large files
Directory output writes data as it arrives and avoids retaining the entire download in memory. It still needs working buffers and may need temporary storage for merging. Total memory depends on the tracks, concurrency, processing path and browser.
OPFS is browser-private storage, not the final Downloads folder. A completed temporary result still needs to be saved when the tool asks. Browser storage quotas, private browsing, free disk space and tab suspension can interrupt a job. A Blob fallback may need much more memory; do not use it as evidence that an arbitrarily large file will work.
Keep the tab open until saving finishes. If a task specifically requires direct directory output, switch browsers rather than expecting an automatic fallback to provide the same guarantee.
Source access is a separate requirement
A supported browser can still receive 401/403 responses, expired signatures or blocked cross-origin requests. Extension permissions help with supported requests from the original page; they do not bypass DRM, account restrictions or a server refusing access.
Reproduce a problem
Start with the four-second MP4 sample, HLS playlist or DASH manifest. Note the browser version, operating system, selected tool, error and save method. A successful sample checks a small unencrypted workflow only, not all formats or sizes.
See Online Tools and Known Limitations.
Online Tools
M3U8/HLS and MPD/DASH streaming downloaders that work without installing extensions — get stream URL, paste it, select quality, download with one click.
Download Engine Architecture
Current browser download pipeline, JavaScript remuxing, OPFS staging, file saving, cancellation, and practical resource limits.