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
Compare hex strings byte by byte
Updated
Hex comparison checks whether two hexadecimal inputs represent the same bytes and identifies changed or missing positions. OctetBench compares exact byte sequences and lists the first 100 differing positions.
Free to use. No account, email address or trial. Your work stays in your browser.
Apply the original bytes
Choose hex input, supply the source and apply it as the current buffer. Hexadecimal letter case does not change a byte value. Use input syntax the tool accepts and check the parsed byte count.
Enter the comparison sequence
Supply the second hex sequence in the comparison control. The operation compares bytes, not colour meanings, numeric magnitudes or filenames.
Read changed or missing positions
Run comparison and inspect each shown offset and byte value. The list displays the first 100 differing positions, while counts cover the complete buffer. Different sequence lengths can expose missing bytes.
A refusal preserves valid work
Malformed replacement hex is rejected explicitly. It cannot silently overwrite the current valid buffer. The workbench handles at most 65,536 bytes, without directory diffing, disk editing, automatic repair or file-format interpretation.
MADE FOR DEVELOPERS AND INTEGRATORS
For developers, integrators and people checking exact values before using them in another system.
A USEFUL STARTING POINT
Check the bytes behind the appearance
Similar-looking text can contain different values. Compare exact sequences and read the changed position before deciding whether your source needs correction.
FROM QUESTION TO EVIDENCE
Three steps to a useful result.
- 01
Load
Apply the source hex as the current buffer.
- 02
Compare
Enter the second sequence and run comparison.
- 03
Check
Read offsets, values and full difference counts.
One changed byte
The checked journey loads three bytes, compares another sequence and identifies one changed position. It then submits malformed hex to show that valid work is retained after refusal.
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.
Does hex letter case change the bytes?
No. A and a represent the same hex digit. Input must still satisfy the accepted syntax.
Are only 100 differences counted?
No. The list previews 100 positions, while counts cover the complete sequences.
Can it show a missing tail?
Different lengths can produce missing-byte positions.
Is this a large binary-file diff?
No. It is a browser-local small-buffer comparison, limited to 64 KiB.
What are the current 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
Put OctetBench to work.
Open the free tool and start with one known 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 ↗