Early accessSmartFACT Data
When reviewed reference values need to be maintained by a team, SmartFACT Data, including ConfigSheets, provides maintained tables and agreed receiving workflows. It is in early access.
FREE TEXT, HEX AND BYTE EDITOR
See every byte.
Paste text or bytes, see their representations, and edit with the original bytes in view. Reveal hidden characters, check encodings and download exactly the bytes you choose.
Free to use. No account, email address or trial. Your work stays in your browser.
BYTES / INSPECT EXAMPLE
Hexadecimal bytes
41 09 C3 A9
A · TAB · é (UTF-8)
4Bytes3Code points0Uploads
Illustrative bytes: a letter, a tab and a two-byte UTF-8 character. Views preserve the byte buffer.
MADE FOR DEVELOPERS AND INTEGRATORS
For developers, integrators and teams investigating scanner text, file encodings, hidden separators and values that look identical but compare differently.
A USEFUL STARTING POINT
The text looks right. The bytes tell another story.
A trailing tab, a non-breaking space or a different encoding can turn an apparently identical value into a mismatch. OctetBench keeps the bytes visible while you inspect their text, edit a byte or compare another sequence. Changing a view leaves the original bytes intact.
FROM SAMPLE TO ANSWER
Enter. Inspect. Use.
- 01
Enter the data
Paste text or choose hex, Base64, Base64url, binary or decimal input. Apply valid input to the byte buffer, or explicitly open a local file.
- 02
Inspect and edit
Choose a text encoding, reveal hidden characters, select a byte and replace it, or read a number with explicit byte order.
- 03
Copy, compare or download
Compare another hex sequence, copy a representation or download the raw bytes. Downloads include the complete buffer.
WHAT IT DOES
Useful details, in plain view.
- 01
Text and bytes together
UTF-8, ASCII and both UTF-16 byte orders, with explicit failure when the bytes do not form valid text.
- 02
Hidden values explained
Tabs, carriage returns, line feeds, non-breaking spaces and other supported controls appear with their code point and byte offset.
- 03
Edits you can reverse
Apply a whole input or replace one byte. Invalid input keeps the current bytes, and 20 undo steps remain in memory.
- 04
Useful representations
Hex, Base64, Base64url, binary, decimal, escaped text and C#/JavaScript byte-array output.
- 05
Compare exact bytes
See every difference in the counts and the first 100 differing positions, including missing bytes.
- 06
Numbers with stated assumptions
Read signed and unsigned 8/16/32-bit values at a selected offset with explicit little- or big-endian byte order.
In this tab, until you copy or download it.
Work stays in memory while the tab is open. It is not saved automatically or uploaded. Refreshing or closing the page discards it. Copying writes to your clipboard and downloading creates a local file; those copies can outlive the tab.
WHEN CHECKS REPEAT
From a useful check to everyday work.
These SmartFACT services handle work that repeats across a team or on each job. The workbench remains free and independent.
Early access
Invited trialLabelRules
When label requirements must be checked on every job, LabelRules turns requirements described in plain English into reviewed rules for label selection and value checks. It starts with an invited trial.
BEFORE YOU START
A few practical answers.
Is it free?
Yes. Every supported check, edit, preview and export is free, without an account, email step or trial.
Does changing the encoding change my bytes?
No. It changes how text is read and written. The buffer changes only when you explicitly apply input, replace a byte, use undo/redo, open a file or clear the bytes.
What happens to invalid UTF-8?
It is reported as invalid text. The original bytes stay available in hex and other byte representations, and can be downloaded exactly. Replacement characters are not written back.
Can it open files?
Yes, when you choose one, up to 64 KiB. Reading is local. The file name is not retained, and downloading creates a new copy rather than overwriting your original.
What are the limits?
The buffer is limited to 65,536 bytes (64 KiB), with 20 byte-change undo steps. Byte-grid preview shows 256 bytes, character inspection 128 code points and comparison 100 differing positions; counts and exports use the full buffer. Supported encodings are explicit; invalid text is reported, never repaired. Browser text entry may normalise line endings, so use hex or a local file for exact original bytes. This is a small byte workbench, not a disk editor or file-format parser.
What happens to my data?
Your input, byte buffer, comparison and undo history stay in this tab’s memory. Files are read only when you choose one, never uploaded, and file names are not kept. Refreshing or closing the tab discards this work. Clipboard copies and downloaded files can outlive the tab. The tool has no analytics or automatic storage. These public pages offer the suite’s optional analytics separately; ordinary requests for pages, scripts and the same-origin suite catalogue may be logged by hosting providers.
ONE SMALL JOB, DONE WELL
See every byte.
Open the free workbench, or start from an example.
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.
Early accessSuggested next stepSmartFACT 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 ↗Invited trialLabelRules
Describe label rules in plain English. Automatically select layouts, resolve customer codes and check each job before printing.
Explore LabelRules ↗
Early accessKitProof
Turn plain English component rules into automatic kit checklists, then check scans against the expected parts and quantities.
Explore KitProof ↗
Early accessWorkSteps
Turn plain English rules into automatic step selection for each unit, with required evidence and a record of completed work.
Explore WorkSteps ↗
Early accessFactorySpec
Apply approved product rules and calculations automatically to turn dimensions and options into manufacturing requirements.
Register early-access interest ↗
Early accessOrderRun
Turn plain English rules into automatic order checks and destination selection, with controlled production release.
Register early-access interest ↗
Early accessParcelOffice
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 accessRefillFlow
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 accessRemnantRack
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 trialToolCustody
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 trialStoresFlow
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 trialLotTrail
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 accessCheckStation
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 trialReclaimStation
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 toolScannerBench
See the text and key events your keyboard scanner sends. Compare them with the value you expected.
Test a scanner ↗
Free toolPrintBench
Print a known PDF, measure its reference marks and compare scans from the printed codes.
Check a print ↗
Free toolCardBench
Create 100 × 50 mm bin and rack cards with Code 128 or QR, from one record or a CSV.
Make bin cards ↗
Free toolCountBench
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 toolBarcodeBench
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 toolMatchBench
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 toolTagBench
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 toolFindBench
Load your own parts and locations CSV, scan a code and see every location it lists. No account needed.
Start a free lookup ↗
Free toolManifestBench
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 toolFeedBench
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 toolCycleBench
Time work cycles and changeovers on a phone, record interruptions with reasons and download the results. No account needed.
Start a free study ↗
Free toolOffcutBench
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 toolTraceBench
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 toolReclaimBench
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 toolGuidBench
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 toolOctetBench
Inspect and edit text, hex, Base64 and binary bytes in your browser, reveal hidden characters and compare byte sequences. No account needed.
You are here
Free toolPatternBench
Test JavaScript regular expressions in your browser, inspect matches and captures, preview replacements and check expected cases. No account needed.
Test a pattern ↗
HelpSmartFACT 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 ↗