Extract Numbers from Text
List all numeric tokens including integers, decimals, and scientific notation where matched.
How it works
- 1Paste or type your text in the input field
- 2Click "Extract" — processing happens in your browser
- 3Copy the result or download as a text file
What to do next
About Extract Numbers
Extract Numbers runs the text processing job locally inside your browser. List all numeric tokens including integers, decimals, and scientific notation where matched. The work happens on your machine, the result is generated on your machine, and the page exposes the controls you need to drive it without burying them in menus.
The processing pipeline is straightforward: your input is parsed by standard browser APIs, transformed according to the options you select, and serialised back into a downloadable result. The 0 MB per-file ceiling matches what a typical browser tab can handle without paging to disk.
Extract Numbers is shaped around the recurring needs of two audiences: support agents standardising replies, who use it as a quick utility between bigger tools, and developers prepping fixture data, who use it as their primary way of getting the job done. Both groups get the same defaults and the same speed.
The architecture is local-first by design. Once the page is loaded, you can disconnect from the network and the tool still completes the job. The processing stack — standard browser APIs and the small UI shell wrapping it — ships with the page itself, so the tool keeps working in offline conditions, on a captive-portal Wi-Fi, or behind a corporate proxy that limits what the tab can reach.
The right moment to reach for Extract Numbers is when you have a focused text processing job that fits inside a browser tab. Open the page, drop in the file or paste your input, choose the options that matter, and the tool returns the result.
Output handling is intentionally boring: Extract Numbers produces a single output file and triggers your browser's standard "save" behaviour. If you have a default download folder configured, that is where it will land. There is no Favtoo-side history of jobs you have run.
A practical note on limits: Extract Numbers accepts inputs up to 0 MB per run, and the tool processes one input at a time to keep memory usage predictable. If you ever bump into the ceiling, the cause is the size of the input.
Even on its own, Extract Numbers composes well with the rest of your toolkit. The output is a standard text file that opens in any program that handles the format, so the result of one run can become the input to whatever step you use next.
Extract Numbers keeps the control set focused. Every option on the page is there because a real workflow needs it, and the defaults aim at the most common case so a first-time user can get the right output without changing any settings.
Extract Numbers is one example of a broader pattern: utility software increasingly works as single-page, client-side experiences. Every page in the catalog is shaped that way, which keeps each tool fast to load and easy to recommend in a single link.
Extract Numbers fits the gap where opening a desktop app feels heavy and writing a script feels overkill. The page handles the common text processing task with sensible defaults so a single visit usually completes the job; for highly specialised work, a dedicated desktop application can offer more knobs to turn.
Tips from users who reach for Extract Numbers regularly: process one input first to confirm the settings produce what you expect before committing to a batch; treat the page as the working surface and avoid leaving large jobs running in a backgrounded tab where the browser may throttle JavaScript; and if a particular file fails, check whether the source is intact by opening it in its native viewer — most "tool errors" are actually input errors.
For most failure modes, refreshing the page and re-running the job is enough — the engine has no persistent state to corrupt. If the same input fails twice in a row, the input itself is most likely the problem (a truncated file, an unexpected variant of the format, or a stream the engine does not recognise).
That is essentially everything Extract Numbers does and how it does it. Open the tool above, drop in your input, and the work happens in the page. If you find yourself reaching for it often, bookmark the page — it loads quickly on subsequent visits, and your most-recent settings are remembered for the rest of the session.
How it works
- 1Land on the Extract Numbers page. The tool is ready to use the moment the page renders.
- 2Add your text input by dropping it onto the page or browsing for it.
- 3Tweak the controls if the defaults are not quite right for your input. The options are kept short and labelled in plain language.
- 4Click to start the job. The engine (standard browser APIs) processes the input in the page; you can watch the progress indicator until it completes.
- 5Grab the output as soon as the run completes. You can also copy the result instead of downloading if the next tool in your workflow accepts pasted input.
- 6Repeat the process for additional inputs whenever you need to. The page stays loaded, so subsequent runs are quick.
Common use cases
- Count the words in a draft to check it fits a brief using Extract Numbers.
- Re-case a title from ALL CAPS to Title Case.
- Encode user input safely before pasting it into HTML.
- Strip messy formatting out of copy pasted from a PDF.
- Reformat a JSON blob copied from a log into something readable.
- Sort a list of items alphabetically before publishing it.
- Convert a column of names into a comma-separated list for a script.
- Find and replace dozens of variants of a phrase in one pass.
FAQ
Thousands separators?
Commas inside numbers may break matches unless they are plain digit runs.
Hex numbers?
0xDEADBEEF style hex is not matched by the decimal-centric pattern.
Currency?
Dollar signs are not part of the match; only the numeric portion is captured.
Local tool?
Yes — nothing is uploaded.
Negative numbers?
Leading minus before digits is included when present.
Scientific notation?
Patterns like 1.2e-3 are matched when contiguous.
Can I use Extract Numbers for commercial work?
Extract Numbers can be used for personal and commercial work alike — there is no separate "business" licence to purchase. The output you generate is yours to use however you want, including in client deliverables, internal documents, or commercial products. Favtoo's only ask is fair, individual use; the tool is not designed to be embedded as a backend service or wrapped behind an API for resale.
How do I know I am using the latest version of Extract Numbers?
Extract Numbers is updated whenever the underlying engine releases an improvement or a bug fix. Because the tool is delivered as a static page, every visit fetches the latest version automatically — there is no "version" to manage on your end. If a particular release ever changes default behaviour, the change is documented on Favtoo's changelog so you can confirm what shifted.
Can I use Extract Numbers with formats other than the defaults?
The accepted formats are listed in the upload area on the tool itself. If your input is in a format that is not directly supported, convert it first using one of Favtoo's converter tools — every Favtoo converter outputs a file that is a clean input to the next tool in the chain.
Why did Extract Numbers reject my input?
Failures usually fall into one of three buckets: the input is in an unsupported format, the input is over the size cap, or the input is structurally malformed (a truncated download, a partial export, or a stream the engine does not recognise). The first two are easy to confirm — check that your file is in a supported format and that it is below 0 MB. For the third, opening the file in its native viewer first is the fastest way to confirm the source is intact.
How fast is Extract Numbers?
Most jobs finish in seconds. Speed scales with input size and with how many CPU cycles your browser tab has available — the engine runs in your browser, so it shares resources with whatever else you have open. For inputs near the 0 MB ceiling, expect anywhere from a few seconds to roughly a minute on a typical laptop. Closing other heavy tabs noticeably speeds things up.
Is there a desktop version of Extract Numbers?
No installation is needed. Extract Numbers runs as a normal web page, with no browser extension, no native helper, and no separate desktop client to download. That is partly a privacy choice — extensions can request broad permissions, while a regular page is sandboxed by default — and partly a convenience one: you can use Extract Numbers on any computer you have temporary access to without leaving anything installed on it.
Can I self-host Extract Numbers for my team?
Extract Numbers is a static page running an open-source engine in your browser, so a typical corporate firewall does not get in the way as long as it allows JavaScript to load from Favtoo. For teams that need to host it themselves on an internal network, the underlying engine (standard browser APIs) is open-source and can be packaged into a private build with the same behaviour. Reach out via the Contact page if that is something you are exploring.
Where does my file actually go when I use Extract Numbers?
Your file is processed inside your browser by standard browser APIs. The engine reads the file's bytes from your tab's memory, computes the result, and writes the result back into the tab. You can confirm what the page does by opening developer tools and watching the Network tab during a run — the requests you see are for the tool's static assets only.