Practical utilities for recurring business and professional work.
Tools on Martzine are designed for recurring business and professional tasks. They help turn a repeatable piece of work into a clear interface with defined inputs, an understandable output and a practical next action.
The principle is simple: use the lightest useful digital layer first. When a task becomes stable, frequent and measurable, it can later move into automation, software or a wider operating system.
Each category page brings together the tools assigned to that business area. Open a category when you want the wider set rather than one specific tool.
The main library contains the base tools. Focused sub-tools sit alongside them when a narrower business question deserves its own page.
Material: spool price ÷ spool grams; job material cost multiplies that rate by used grams. Machine: (purchase − residual + lifetime maintenance) ÷ lifetime hours + kW × electricity rate.
Material: spool price ÷ spool grams; job material cost multiplies that rate by used grams. Machine: (purchase − residual + lifetime maintenance) ÷ lifetime hours + kW × electricity rate.
Word count uses whitespace-separated words; character counts use JavaScript string length. Token pages estimate English tokens as characters ÷ 4, rounded up.
Combine the supplied HTTP method and endpoint with headers and body into a text request draft.
Encode Unicode text as UTF-8 Base64, or decode Base64 according to the selected page. This is an encoding, not encryption.
Encode Unicode text as UTF-8 Base64, or decode Base64 according to the selected page. This is an encoding, not encryption.
Subtract fixed and variable costs from entered revenue to display net before buffer. List the buffer separately.
Organize the source fields into task checklist and append the task-specific completion checklist.
Organize the source fields into task checklist and append the task-specific completion checklist.
Organize the source fields into business model worksheet and append the task-specific completion checklist.
Organize the source fields into campaign brief and append the task-specific completion checklist.
Join nonempty channel, market, objective, offer, audience and period values with underscores, convert to uppercase and replace other characters with underscores.
Subtract the entered cash outflows from inflows and add the movement to opening cash to estimate ending cash.
Subtract expected outflows from expected inflows and add the difference to opening cash. Display the period and action owner beside the result.
Word count uses whitespace-separated words; character counts use JavaScript string length. Token pages estimate English tokens as characters ÷ 4, rounded up.
Organize the source fields into client discovery record and append the task-specific completion checklist.
Inches × DPI = pixels; centimetres ÷ 2.54 × DPI = pixels. Reverse conversions divide pixels by DPI. DPI must be positive.
Feed in inches per minute = RPM × flute count × chip load in inches per tooth.
Mass (lb) = length (in) × width (in) × thickness (in) × density (lb/in³).
Expand a valid three-digit hexadecimal color to six digits, then convert each channel to an RGB integer.
Organize the source fields into content brief and append the task-specific completion checklist.
Organize the source fields into content calendar entry and append the task-specific completion checklist.
Insert indentation and line breaks around braces and semicolons while retaining recognized strings and comments.
Plan one-dimensional cuts from stock length, required piece lengths and kerf (material lost at each separating cut). Verify the suggested allocation before cutting.
Absolute elapsed days between two valid dates.
Fraction to decimal: numerator ÷ nonzero denominator. Decimal to fraction: find an exact small-denominator representation up to 1000, otherwise use a rounded approximation.
Arrange the objective, audience, three entered email outlines and call to action into a numbered text record.
Add entered benefits, employer burden and allowances to base salary. Display the additional cost and estimated total.
Organize the source fields into onboarding checklist and append the task-specific completion checklist.
Arrange role, start date, manager, systems, first deliverable and review date into an onboarding record.
Display the supplied expense, amount, purpose and recurring status in one review record.
Organize the source fields into prospect follow-up plan and append the task-specific completion checklist.
Organize the source fields into follow-up sequence and append the task-specific completion checklist.
Fraction to decimal: numerator ÷ nonzero denominator. Decimal to fraction: find an exact small-denominator representation up to 1000, otherwise use a rounded approximation.
For encoding, replace ampersands, angle brackets, double quotes and apostrophes with HTML entities. For decoding, use a browser textarea to interpret entities.
For encoding, replace ampersands, angle brackets, double quotes and apostrophes with HTML entities. For decoding, use a browser textarea to interpret entities.
Insert indentation and line breaks around braces and semicolons while retaining recognized strings and comments.
Create a JPEG export with the selected dimensions and quality. Compare file size and visible detail before using the result on a page.
Produce a centred crop of the selected image. Keep a copy of the original and check whether the crop retains the subject you need.
Resize a local image to the entered dimensions. A zero height preserves aspect ratio; inspect the exported image before replacing the original.
Inches × DPI = pixels; centimetres ÷ 2.54 × DPI = pixels. Reverse conversions divide pixels by DPI. DPI must be positive.
Organize the source fields into internal link plan and append the task-specific completion checklist.
Organize the source fields into interview evidence sheet and append the task-specific completion checklist.
Add the two entered item amounts, calculate tax on their subtotal, and display company, client, items, tax, total and terms as text.
Insert indentation and line breaks around braces and semicolons while retaining recognized strings and comments.
Organize the source fields into role description draft and append the task-specific completion checklist.
Parse the supplied JSON and serialize it with indentation using JSON.parse and JSON.stringify.
Parse the supplied JSON and serialize it with indentation using JSON.parse and JSON.stringify.
Parse the supplied JSON and serialize it without indentation using JSON.stringify.
Attempt to parse the supplied text using JavaScript JSON.parse and report whether it is valid JSON syntax.
Traverse a dot-separated property path from the JSON root. This is a limited property lookup, not a full JSONPath implementation.
Decode the second token segment as base64url JSON and display the payload with indentation.
Organize the source fields into kpi definition record and append the task-specific completion checklist.
Organize the source fields into landing page brief and append the task-specific completion checklist.
Organize the source fields into qualification record and append the task-specific completion checklist.
Collect offer fit, buyer, problem, budget, timeline and decision maker into a qualification review record.
Multiply the budget by each channel percentage divided by 100. Sum the allocations and subtract that sum from the total budget.
Multiply traffic by the lead rate, then by qualification and close rates, dividing each entered percentage by 100. Round displayed counts to whole numbers.
Organize the source fields into meeting agenda and append the task-specific completion checklist.
Organize the source fields into offer brief and append the task-specific completion checklist.
Display the supplied Open Graph title, description and URL with title and description character counts.
Organize the source fields into performance review record and append the task-specific completion checklist.
Inches × DPI = pixels; centimetres ÷ 2.54 × DPI = pixels. Reverse conversions divide pixels by DPI. DPI must be positive.
Inches × DPI = pixels; centimetres ÷ 2.54 × DPI = pixels. Reverse conversions divide pixels by DPI. DPI must be positive.
Allocate supplied piece lengths against a stock length with kerf. This implementation is one-dimensional; it does not nest rectangles across a plywood sheet.
Organize the source fields into policy brief draft and append the task-specific completion checklist.
Map high, medium and low impact and urgency to 3, 2 and 1. Multiply the scores for each task and show the higher score or a tie.
Organize the source fields into process handoff map and append the task-specific completion checklist.
Organize the source fields into product brief and append the task-specific completion checklist.
Organize the source fields into roadmap worksheet and append the task-specific completion checklist.
Organize the source fields into project kickoff record and append the task-specific completion checklist.
Organize the source fields into scope record and append the task-specific completion checklist.
Organize the source fields into proposal outline and append the task-specific completion checklist.
Organize the source fields into quote draft and append the task-specific completion checklist.
Construct a JavaScript RegExp from the entered pattern and test whether it matches the supplied text.
Organize the source fields into risk register draft and append the task-specific completion checklist.
Organize the source fields into sales call plan and append the task-specific completion checklist.
Organize the source fields into discovery interview plan and append the task-specific completion checklist.
Organize the source fields into scope record and append the task-specific completion checklist.
Carrier total = entered per-order cost × orders. Difference = absolute difference between carrier totals.
Display the supplied title, description and URL as text, with JavaScript character counts for the title and description.
Compare the entered width and height with a stored dimension preset for the selected supported platform.
Organize the source fields into software evaluation record and append the task-specific completion checklist.
Organize the source fields into requirements draft and append the task-specific completion checklist.
Organize the source fields into standard operating procedure draft and append the task-specific completion checklist.
Insert indentation and line breaks around braces and semicolons while retaining recognized strings and comments.
Insert indentation and line breaks around braces and semicolons while retaining recognized strings and comments.
Organize the source fields into tech stack map and append the task-specific completion checklist.
Organize the source fields into time-block worksheet and append the task-specific completion checklist.
Word count uses whitespace-separated words; character counts use JavaScript string length. Token pages estimate English tokens as characters ÷ 4, rounded up.
Encoder: percent-encode the complete supplied component. Decoder: percent-decode the supplied component. The page action determines the direction.
Encoder: percent-encode the complete supplied component. Decoder: percent-decode the supplied component. The page action determines the direction.
Match the supplied user-agent string for selected browser/version patterns and Windows, Android, iOS or macOS markers.
Create a campaign tracking URL with source, medium and campaign values you can recognise in your reports. Keep the naming convention consistent across the campaign.
Organize the source fields into website launch checklist and append the task-specific completion checklist.
Word count uses whitespace-separated words; character counts use JavaScript string length. Token pages estimate English tokens as characters ÷ 4, rounded up.
Organize the source fields into automation brief and append the task-specific completion checklist.
Remove whitespace between adjacent tags and insert line breaks between tags.
The XML check verifies well-formed syntax.
Extract a video identifier from supported watch, short-link or Shorts URL patterns and construct thumbnail image addresses.
These sub-tools isolate recurring steps that often sit inside a sales, pricing, operations or technology workflow.
Use material cost, machine cost, labor cost, shipping to prepare the 3d print cost breakdown record. The worksheet applies the displayed arithmetic to your supplied values; it does not retrieve…
Collect the supplied intake fields and list which entries are blank. Append the print-quote or CNC setup readiness reminder for this worksheet.
Use normalized annual profit, profit multiple, surplus cash, debt to prepare the agency valuation scenario record. The worksheet applies the displayed arithmetic to your supplied values; it does not retrieve…
Use provider / api, monthly requests, rate per request, other billable units, extra unit rate to prepare the api cost assumption sheet record. The worksheet applies the displayed arithmetic to…
Use gross period sales, discounts, channel fees, refunds, fulfillment cost to prepare the channel price waterfall record. The worksheet applies the displayed arithmetic to your supplied values; it does not…
Use monthly compute hours, compute rate, storage gb, storage rate, egress gb, egress rate to prepare the cloud cost input sheet record. The worksheet applies the displayed arithmetic to your…
Collect the supplied intake fields and list which entries are blank. Append the print-quote or CNC setup readiness reminder for this worksheet.
Use product cost, freight, duty, insurance to prepare the ecommerce landed cost sheet record. The worksheet applies the displayed arithmetic to your supplied values; it does not retrieve account data.
Use orders, gross sales, platform fees, seller shipping, ads to prepare the etsy payout breakdown record. The worksheet applies the displayed arithmetic to your supplied values; it does not retrieve…
Use sale price, product cost, fee (%), ad spend, return allowance, orders in the period, fulfillment cost per order to prepare the fba profit input checklist record. The worksheet applies…
Use target annual income, available hours/week, billable utilization (%), working weeks to prepare the freelance pricing worksheet record. The worksheet applies the displayed arithmetic to your supplied values; it does…
Use visitors, visitor to lead (%), lead to customer (%) to prepare the funnel conversion breakdown record. The worksheet applies the displayed arithmetic to your supplied values; it does not…
Use model, input tokens, input rate / 1m, output tokens, output rate / 1m to prepare the llm cost scenario planner record. The worksheet applies the displayed arithmetic to your…
Use marketplace a, marketplace b, sales volume, a fee (%), b fee (%) to prepare the marketplace fee comparison worksheet record. The worksheet applies the displayed arithmetic to your supplied…
Convert the entered hour and minute using the difference between manually supplied source and target UTC offsets, wrapping to a 24-hour time.
Use monthly sales, monthly transactions, percentage fee (%), fixed fee per transaction, monthly charge to prepare the merchant cost forecast record. The worksheet applies the displayed arithmetic to your supplied…
Apply each entered target UTC offset to the source time and display three target clock times.
Use monthly gross sales, monthly transactions, a percentage fee (%), a fixed fee per transaction, a monthly charge, b percentage fee (%), b fixed fee per transaction, b monthly charge…
Use current unit price, price increase (%), current period units, expected unit decline (%) to prepare the price increase scenario record. The worksheet applies the displayed arithmetic to your supplied…
Use a unit price, a period units, b unit price, b period units, variable cost per unit to prepare the pricing scenario comparison record. The worksheet applies the displayed arithmetic…
Organize the source fields into requirements draft and append the task-specific completion checklist.
Use accounts due for renewal, expected renewal (%), annual value per account to prepare the renewal revenue forecast record. The worksheet applies the displayed arithmetic to your supplied values; it…
Use sales representatives, hours per rep/week, weeks in period, selling time (%) to prepare the rep capacity planner record. The worksheet applies the displayed arithmetic to your supplied values; it…
Use sale price, item cost, platform fee (%), shipping, other cost to prepare the reseller listing profit worksheet record. The worksheet applies the displayed arithmetic to your supplied values; it…
Use team members, hours per member in period, available delivery time (%), already committed hours to prepare the resource capacity planner record. The worksheet applies the displayed arithmetic to your…
Use period revenue target, forecast period revenue to prepare the revenue target gap record. The worksheet applies the displayed arithmetic to your supplied values; it does not retrieve account data.
Use measured roof area, roofing product, product coverage, waste allowance (%), valley count to prepare the roofing material takeoff checklist record. The worksheet applies the displayed arithmetic to your supplied…
Use tool 1 / month, tool 2 / month, tool 3 / month, other recurring to prepare the saas stack cost planner record. The worksheet applies the displayed arithmetic to…
Use unquoted hours, cost per hour, other unquoted cost to prepare the scope creep tracker record. The worksheet applies the displayed arithmetic to your supplied values; it does not retrieve…
Use product cost, shipping, platform fee (%), target margin (%) to prepare the seller pricing worksheet record. The worksheet applies the displayed arithmetic to your supplied values; it does not…
Use critical load 1 (w), critical load 2 (w), backup hours, reserve (%) to prepare the solar load audit record. The worksheet applies the displayed arithmetic to your supplied values;…
Use a monthly charge, a cost per transaction, b monthly charge, b cost per transaction to prepare the transaction fee break-even record. The worksheet applies the displayed arithmetic to your…
Use employees, annual salary per employee, annual benefits per employee, combined cost increase (%) to prepare the workforce cost forecast record. The worksheet applies the displayed arithmetic to your supplied…
Tell us what you are trying to build, what problem you are solving and where the digital part becomes difficult. Martzine is built around that gap. Start with the outcome and the constraint, then work back to the right digital layer.
