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PatternBenchBY SMARTFACT

ABOUT PATTERNBENCH

A useful workbench, free to use.

A browser-local JavaScript regular-expression workbench with g/i/m/s/u/y flags, optional live evaluation, match highlights, numbered/named captures and exact UTF-16 offsets, syntax explanations, replacement previews, capture extraction, JavaScript code generation and up to 50 expected-match cases. Save and reopen local project JSON files. Each run uses a disposable worker with cancellation and a 1.5-second execution limit.

Limits that stay visible

Patterns and replacement text are limited to 4,096 UTF-16 code units each; samples to 100,000. Up to 1,000 matches and 64 capture groups are supported, with 200,000 retained text/output code units. Cases are limited to 50 values of 2,000 code units each. Highlighted preview shows 6,000 sample code units and the table 100 matches; complete results are used for replacement and export. The engine is the current browser’s JavaScript RegExp, not PCRE, .NET or another dialect. Matching a shape does not prove that a real-world value exists. Syntax explanations show up to 512 elements. Project files are limited to 1.5 MB. Generated snippets do not include the workbench’s worker or result limits.

Part of SmartFACT

PatternBench is free without an account, subscription or trial. Your work remains in your browser. Explore the SmartFACT suite for other free tools and services.

THE SMARTFACT SUITE

Practical tools. Useful on their own.
Better around the same floor.

Automate factory decisions with rules you describe in plain English. Explore focused SmartFACT services, plus free tools for everyday checks.

Invited trialSuggested next step

LabelRules

Describe label rules in plain English. Automatically select layouts, resolve customer codes and check each job before printing.

Explore LabelRules ↗
Early access

KitProof

Turn plain English component rules into automatic kit checklists, then check scans against the expected parts and quantities.

Explore KitProof ↗
Early access

WorkSteps

Turn plain English rules into automatic step selection for each unit, with required evidence and a record of completed work.

Explore WorkSteps ↗
Early access

FactorySpec

Apply approved product rules and calculations automatically to turn dimensions and options into manufacturing requirements.

Register early-access interest ↗
Early access

SmartFACT Data

Maintain reference tables with ConfigSheets or bring shop orders into SmartFACT through reviewed connectors. Check changes and deliver data to the products that use it.

Explore SmartFACT Data ↗
Early access

ParcelOffice

Scan the work order and the parcel choice to book the courier and print the labels. Approved plain English rules recommend or choose the parcel.

Explore ParcelOffice ↗
Early access

RefillFlow

Scan an empty container to send the right refill request to stores. Approved plain English rules set the stores queue, priority, ticket printer and escalation.

Explore RefillFlow ↗
Early access

RemnantRack

Label each offcut, find a suitable length before cutting new stock and record what you used. Approved plain English rules decide what to keep and where it goes.

Explore RemnantRack ↗
Invited trial

ToolCustody

Check a shared tool before handover, record who has it and keep damaged or overdue tools out of the next issue. Explore an invited trial for one factory crib.

Explore ToolCustody ↗
Invited trial

StoresFlow

Receive, put away, reserve and issue stores material with barcode checks, keeping held, reserved and available stock apart. Explore an invited trial for one stockroom.

Explore StoresFlow ↗
Invited trial

LotTrail

Follow a lot or serial number through the records your factory already keeps, with the source of each link and the gaps shown. Explore an invited trial with two declared sources.

Explore LotTrail ↗
Early access

CheckStation

Scan an identified unit to get its approved final-inspection checks, then record exact readings with their result, holds and release history.

Register early-access interest ↗
Invited trial

ReclaimStation

Book returned units in, recover and label the usable parts, release them independently and record the unit each goes into. Explore an invited trial for one product family.

Explore ReclaimStation ↗
Free tool

ScannerBench

See the text and key events your keyboard scanner sends. Compare them with the value you expected.

Test a scanner ↗
Free tool

PrintBench

Print a known PDF, measure its reference marks and compare scans from the printed codes.

Check a print ↗
Free tool

CardBench

Create 100 × 50 mm bin and rack cards with Code 128 or QR, from one record or a CSV.

Make bin cards ↗
Free tool

CountBench

Count stock by location with a barcode scanner, compare it with a stock file and export the results. No account needed.

Start a free count ↗
Free tool

BarcodeBench

See exactly what a scanned barcode contains, with hidden characters shown and GS1 fields, check digits and dates explained. No account needed.

Inspect a barcode ↗
Free tool

MatchBench

Scan a reference and each label, see an exact match or the first difference, and download the results. No account needed.

Start a free comparison ↗
Free tool

TagBench

Scan an item or location, note what needs attention, print a review tag and keep a review list. No account needed.

Make a free tag ↗
Free tool

FindBench

Load your own parts and locations CSV, scan a code and see every location it lists. No account needed.

Start a free lookup ↗
Free tool

ManifestBench

Check cartons, pallets or serial numbers against a list with a phone or scanner and see what is missing. No account needed.

Start a free check ↗
Free tool

FeedBench

Check CSV and JSON files exactly as written, preview a column mapping and compare two versions by key. No account needed.

Check a file free ↗
Free tool

CycleBench

Time work cycles and changeovers on a phone, record interruptions with reasons and download the results. No account needed.

Start a free study ↗
Free tool

OffcutBench

Label the offcuts on your rack, find a piece long enough before cutting new stock and record what you used. No account needed.

Track offcuts free ↗
Free tool

TraceBench

Load one or two CSV exports and follow a lot or serial forwards or backwards, with the row behind every link. No account needed.

Start a free trace ↗
Free tool

ReclaimBench

Record the parts recovered from each return, label them with a QR code, check them and record the unit each one goes into. No account needed.

Track recovered parts free ↗
Free tool

GuidBench

Generate GUIDs, UUID v4 and v7, ULIDs and Nano IDs, format and download batches, or inspect a UUID in your browser. No account needed.

Generate identifiers ↗
Free tool

OctetBench

Inspect and edit text, hex, Base64 and binary bytes in your browser, reveal hidden characters and compare byte sequences. No account needed.

Inspect some bytes ↗
Free tool

PatternBench

Test JavaScript regular expressions in your browser, inspect matches and captures, preview replacements and check expected cases. No account needed.

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Help

SmartFACT Help

Step-by-step guides and interactive demonstrations for the SmartFACT suite. Read the instructions, watch a task or practise with real product screens and sample data.

Open SmartFACT Help ↗