Agent Ransack Review: Free Content Search That Actually Finds Things

Who Agent Ransack is for

Agent Ransack, from UK developer Mythicsoft, answers a different question than filename tools like Everything. Not "where is the file called budget-2026.xlsx?" but "which of these 400 documents mentions the Henderson account?" If you're a lawyer, accountant, researcher, support engineer or developer who regularly needs to find a phrase buried somewhere in a folder of documents, this is the tool — and unlike most content-search software, it costs nothing for personal and commercial use.

One housekeeping note: Mythicsoft's paid product is called FileLocator Pro. This site, filelocator.net, is an independent review site with no connection to Mythicsoft — we cover their tools because they're good, not because we're affiliated.

Key features

Content search with no index

Most content-search tools (think DocFetcher or Copernic) build an index first: an upfront wait, ongoing disk space, and the risk of stale results. Agent Ransack skips all that. It scans the actual files at search time, which means results are always current, nothing runs in the background, and you can search any folder — a USB stick, a network share, a freshly unzipped archive — the moment you plug it in. We walk through this approach in our guide to searching file contents on Windows.

Boolean expressions and regex

The "Containing text" box accepts plain phrases, boolean expressions, or full regular expressions:

invoice AND (overdue OR unpaid)
"Henderson account" AND NOT draft
regex: \b\d{3}-\d{2}-\d{4}\b      (SSN-shaped numbers)

Both the filename box and the content box support boolean and regex modes independently, so "files named *report* containing 'Q3' but not 'forecast'" is one query. There's even an expression builder dialog for assembling complex queries without memorizing syntax. If you mainly want regex find and replace, see our Agent Ransack vs grepWin comparison — grepWin edits files, Agent Ransack only finds them.

Office and PDF filters

Plain grep-style tools fall over on .docx and .pdf files because the text is compressed or encoded. Agent Ransack ships filters that crack open Office documents (modern and legacy formats) and PDFs to search their actual text. It handles digitally created PDFs well; scanned image-only PDFs need OCR, which is FileLocator Pro territory — our guide to searching inside PDFs covers the distinction.

Hit-in-context preview

This is the feature that hooks people. Click any result and the preview pane shows every matching line with the search term highlighted, like grep output with a GUI. You confirm which file you actually want before opening anything — across a results list of fifty documents, that saves real minutes. Double-clicking a hit line jumps straight to that location in the file's default application.

Date and size filters, saved searches

Modified/created date ranges and size limits sit right on the main window — "Word files over 1 MB changed in the last 30 days containing 'tender'" needs no advanced dialog. Searches save as .srf files you can reload or share with colleagues, and a tabbed interface lets you run several searches side by side. Results export to text, CSV or the clipboard.

Lite vs Pro: the Mythicsoft family

Agent Ransack and "FileLocator Lite" are the same free program under two names. The paid sibling, FileLocator Pro (around $60 per user, with a free trial), adds the heavy-duty extras: OCR for scanned PDFs, more file-format converters (email stores, archives), optional indexing for repeated searches over the same locations, scripting, and priority support. The free version is not crippled — it's the genuinely useful core, which is why it tops our best free file search tools list for content search.

Performance in our testing

Index-free search lives or dies by scan speed, so we pointed Agent Ransack at slices of our 1.2-million-file test library (Ryzen 7, 32 GB RAM, NVMe SSD). In our testing, a content search across a project folder of roughly 30,000 mixed files came back in a few tens of seconds on the first run, and noticeably faster on repeat runs once Windows had cached the files. Narrowing the filename mask first — *.docx, *.log — cut times dramatically, since Agent Ransack only opens files that pass the name filter.

Scaled up to a couple of hundred thousand files, content searches stretched into several minutes; against the full 1.2M-file library, an unrestricted content scan is a coffee-break job, exactly as you'd expect with no index. Filename-only searches were quick at every scale, though never Everything-instant. RAM use stayed modest throughout, and a cancelled search stops immediately with partial results intact. The lesson from our testing: scope your searches and Agent Ransack feels fast; fire blind at a whole drive and physics wins.

Ease of use

The main window is sensible: file name box, containing-text box, look-in path, date/size filters, results below with the preview pane alongside. Anyone who has used a search dialog can run a basic query in seconds, and the Expression Wizard helps with boolean logic. The honest criticism is that it looks dated — dense toolbars and dialogs that haven't changed much in a decade. It also installs an Explorer right-click entry ("Agent Ransack..." on any folder), which quickly becomes the main way you launch it.

Pricing

Agent Ransack is free, including for commercial use, from mythicsoft.com. There's no ad-ware, no nag screens, and both 32- and 64-bit builds are provided. Mythicsoft funds development through FileLocator Pro (roughly $60 per license), and the upsell inside Agent Ransack is admirably restrained — a few Pro-only options are visible but greyed out, and that's it.

Alternatives worth considering

grepWin is the closest free rival for text-file work and adds regex search-and-replace, though it lacks Office/PDF filters. DocFetcher takes the opposite architecture — build an index once, then get near-instant repeat content searches — at the cost of setup and staleness. And Everything is the perfect partner rather than a rival: instant filename search to locate the haystack, Agent Ransack to find the needle inside it. See how they all rank in our free file search tools roundup.

FAQ

Final verdict

Agent Ransack does one hard thing — finding text inside files — and does it with more precision than tools costing real money. Boolean logic, regex, Office/PDF support and that excellent preview pane add up to the first tool we install when content search matters and the budget is zero. Know its limits (no index, no OCR, no macOS) and scope your searches, and it will quietly become one of the most-used utilities on your machine. 8.7/10.