Developers & Config Managers
Update a shared value — API endpoint, version string, company name — across dozens of config or source files in one pass.
Bulk File Edit — Update File Contents Across Multiple Files at Once
Find and replace text inside local files in bulk, or overwrite file contents with a template. No scripting, no DevTools — select your files, define the change, preview, and run.
Open Bulk Edit Tool →Who it's for
Content Editors & Technical Writers
Swap placeholder tokens, update boilerplate sections, or normalize formatting across a set of Markdown or text files.
QA Engineers & Testers
Reset test fixture files to a known baseline content state between test runs.
How it works
- Pick your folderSelect the folder containing the files you want to edit. Disk Tamer reads files locally — nothing is uploaded.
- Choose the edit modeSelect 'Find & Replace' to swap specific text inside files, or 'Overwrite' to replace the entire file content with a new template.
- Configure your changeEnter the search text and replacement, or write the new content with optional placeholders like {{counter}} and {{today}}.
- Preview and runReview a summary of files affected and the changes that will be made. Click Run to apply edits across all matched files.
Common use cases
- Replace an old API URL with a new one across 30 config files
- Update a copyright year from 2023 to 2024 in all .txt files in a folder
- Overwrite all .log files with an empty template to reset them before a test run
- Swap a product code in 50 template files after a rebranding
Frequently asked questions
- Does Disk Tamer edit files in place or create copies?
- Disk Tamer edits files in place — it overwrites the file at its original path. There is no copy made automatically. Review the preview carefully before running.
- What edit modes are available?
- Find & Replace (substitutes specific text inside the file) and Overwrite (replaces the entire file content with a new template).
- Can I use regex in find & replace?
- Currently Disk Tamer supports literal text matching. Regex support is on the roadmap.
- Can I edit only certain files in a folder, not all?
- Yes. Use the rule-based or tree-based file selection to pick exactly which files to include before running the edit.
- Is there an undo option?
- There is no automatic undo. Back up files you want to preserve before running a bulk edit.
- What file types can be edited?
- Any plain text file — .txt, .md, .json, .csv, .html, .css, .js, and similar formats. Binary files (images, PDFs, executables) should not be edited this way.
- Can I edit files in subfolders?
- Yes, with rule-based selection you can target files in nested folder structures.