This FAQ covers the common questions people have when using Flipper File—how the tools work, what happens to your files, what to do if something fails, and what to expect from a browser-only approach.
What is Flipper File?
- Flipper File is a collection of simple file tools that run in your browser
- It’s built for quick conversions and everyday file tasks
- It’s designed to stay lightweight, clear, and easy to use
Do you upload my files?
- No—Flipper File does not upload your files
- All processing happens locally in your browser
- Your files stay on your device the entire time
How does “browser-only” file processing work?
- Your browser loads the tool’s code (HTML/CSS/JavaScript)
- When you pick a file, the browser reads it locally
- The conversion happens using in-browser APIs and libraries
- You download the result directly from your browser
There’s no “send to server, wait, download back” loop. It’s all local.
Are my files stored anywhere?
- No file storage on Flipper File servers (because files never go there)
- No file copies saved by the site
- Files live temporarily in your browser’s memory while the tool runs
- Closing the tab clears that temporary in-memory state
Can Flipper File work offline?
- Often, yes—after the page has loaded
- If the tool’s scripts are already cached by your browser, it may keep working without internet
- Some browsers clear caches aggressively, so offline behavior can vary
Is Flipper File safe to use for sensitive documents?
- Browser-only processing reduces risk because there is no upload step
- No uploads means no server-side storage and no transfer risk during upload
- You still control where you download the output and where you keep it
If you’re working with extremely sensitive files, also consider using a trusted device, an updated browser, and a private network.
Do you look at my file contents?
- No—Flipper File tools don’t “read” your file contents in a human sense
- The browser processes the bytes needed to perform the conversion you requested
- There’s no step where file content is sent to Flipper File for review or analysis
Do you track filenames or file metadata?
- Flipper File is designed to avoid collecting file-related data
- Tools should not send filenames, file contents, or document metadata anywhere
- Outputs are generated directly in your browser
Do I need an account?
- No accounts
- No sign-ups
- No email gates
Is Flipper File free?
- Many tools are free to use
- If a tool has limits or premium options, it should be clearly stated on that tool page
- The goal is to keep basic functionality accessible and straightforward
Why is a conversion failing in my browser?
- Some file types are complex and hard to convert perfectly client-side
- Your browser may be running low on memory (especially on mobile)
- The file may be corrupted or formatted in an unusual way
- Some conversions require features that only exist in certain browsers
If a tool fails, the fastest fixes are usually:
- Try a different browser (Chrome, Edge, Firefox, Safari)
- Try the same browser in a private/incognito window
- Reload the page and run the conversion again
- Close other heavy tabs to free memory
- Try a smaller file or split the file into parts
What browsers are supported?
- Modern versions of Chrome, Edge, Firefox, and Safari
- Mobile browsers can work, but large files may be slower or fail due to memory limits
- Older browsers may not support the APIs needed for certain conversions
Is mobile supported?
- Yes—Flipper File is built to be usable on mobile
- For large files, desktop is usually more reliable
- Mobile conversions can be slower due to limited RAM and CPU
Are there file size limits?
- Because processing happens in your browser, the real “limit” is your device
- Large files can run out of memory or take a long time to process
- Mobile devices usually hit limits sooner than desktops
If you’re hitting issues, try:
- Compressing the file first (if that fits your workflow)
- Reducing image resolution (for image-heavy PDFs/docs)
- Splitting a large document into smaller chunks
Why does a tool feel slow?
- Your device is doing the work locally (CPU + memory)
- Large files (or many pages) take longer to decode and re-encode
- Some conversions are naturally heavy (OCR, document layout conversions, etc.)
- Mobile and low-power laptops will take longer
Will the output match my original exactly?
- It depends on the tool and the file type
- Some conversions are “lossless” (format container changes, metadata changes)
- Some conversions are “best-effort” and can change layout, fonts, or quality
- Images and media conversions may involve recompression
If exact fidelity is critical, always spot-check the output—especially with complex PDFs, slides, or design-heavy documents.
Why are fonts or spacing different after conversion?
- Fonts may not be embedded in the source document
- Your device might not have the same fonts installed
- Some formats don’t carry layout rules the same way
- Browser-based renderers may substitute fonts for compatibility
Do tools modify my original file?
- No—Flipper File reads your original file and generates a new output file
- Your original stays unchanged on your device unless you overwrite it yourself
Where do my converted files go?
- Converted files download through your browser like any other download
- The output location depends on your browser’s download settings
- You can usually change the download folder in your browser settings
Can I convert multiple files at once?
- Some tools support batch conversion
- Batch processing depends on the format and the tool’s design
- If batch isn’t available, it’s often to keep performance stable and avoid memory issues
Do you support drag and drop?
- Many tools do (or will) support drag-and-drop for speed
- If drag-and-drop isn’t working, try clicking to select files instead
- Some mobile browsers limit drag-and-drop behavior
What about encrypted or password-protected files?
- Password-protected files may fail unless the tool explicitly supports unlocking
- Some formats require a password to read the content at all
- If a tool supports it, you’ll be prompted for the password in the browser
Can Flipper File open or convert scanned PDFs?
- Scanned PDFs are basically images inside a PDF container
- Extracting text requires OCR (optical character recognition)
- OCR is heavier than standard conversions and may not be available on every tool
Does Flipper File do OCR?
- If a tool supports OCR, it should be labeled clearly
- OCR can be slower and may be less accurate on low-quality scans
- Language support can vary depending on the OCR engine used in-browser
Do you add watermarks to my files?
- Flipper File aims to avoid watermarks
- If a tool ever adds a watermark (for example, due to a third-party library limitation), it should be clearly disclosed on that tool page
Does Flipper File preserve EXIF and metadata?
- It depends on the tool and format
- Some conversions intentionally strip metadata for privacy
- Some conversions keep metadata when possible
If metadata matters for your workflow (camera info, timestamps, document properties), check the output.
Can I use Flipper File for business documents?
- Yes—Flipper File is fine for personal and professional use
- Browser-only processing can be a good fit for internal docs that shouldn’t be uploaded
- For compliance-heavy environments, always follow your organization’s policies
Is Flipper File open source?
- If a specific tool or library is open source, it may be credited on that page
- Not every part of Flipper File is necessarily open source
- Regardless, the privacy model is straightforward: files stay in your browser
What third-party libraries do you use?
- Some tools rely on well-known client-side libraries (for example, PDF or image codecs)
- Libraries are chosen for reliability, size, and browser compatibility
- When relevant, tools may include attribution in the UI or footer
Can browser extensions affect tool behavior?
- Yes—ad blockers, privacy extensions, and script blockers can break file tools
- If something isn’t working, try temporarily disabling extensions for that page
- Incognito/private windows often run with fewer extensions enabled
Why does the site ask for file permissions?
- Browsers require you to explicitly choose files from your device
- Flipper File can only access the files you select
- It can’t browse your filesystem freely
Can I undo a conversion?
- Flipper File can’t “undo” a conversion because it doesn’t modify your original file
- Just keep your original file and treat the output as a new copy
Do you support enterprise or team features?
- Flipper File is focused on simple browser tools, not team dashboards
- No shared storage, no admin panels, no document routing
- The goal is fast, local, straightforward utilities
How do I report a bug?
- Include the tool name
- Include your browser + device type (desktop/mobile)
- Include what you expected vs what happened
- If possible, include a non-sensitive sample file that reproduces the issue
- Email this info to Bobby Kittleberger
If you can’t share the file (totally fair), describing the file type, size, and how it was created still helps.
How can I request a new tool?
- Send the format you want to convert from and to
- Share example files if they’re non-sensitive
- Mention what “done” looks like (layout preserved, quality target, speed, etc.)
- Email this info to Bobby Kittleberger
What’s the best way to get reliable results?
- Use a modern desktop browser for large or complex files
- Close heavy tabs when doing big conversions
- Spot-check the output before deleting the original
- If fidelity matters, run a quick test with a small sample first
Does Flipper File have a privacy or security page?
- Yes—Flipper File documents the “no upload, browser-only” approach clearly
- The core promise is simple: your files stay on your device
What if I’m still not sure whether a tool fits my use case?
- Try it with a copy of a non-sensitive file first
- Check output quality and speed on your device
- If you need help, reach out with details about your goal and file type
Quick Summary
- Flipper File runs locally in your browser
- No uploads, no accounts, no file storage
- Performance depends on your device and file complexity
- When something fails, switching browsers and reducing file size usually helps