Outils Portal
Clean, normalize, and convert text with single-purpose tools you can use instantly in the browser.
Filter by tool name, keyword, or format.
111 tools in total
Fast, private, and focusedNewline Compressor
Collapse consecutive blank lines and trim extra spacing for a clean draft.
Hyphen/Dash Unifier
Standardize mixed hyphens, dashes, and minus signs into one style.
Punctuation Convertisseur
Nonrmalize punctuation, quotes, spacing, and symbols locally.
Whitespace Nonrmalizer
Trim trailing spaces, normalize full-width spaces, and compact runs.
HTML → Text Convertisseur
Retirer HTML tags and format readable text with clean line breaks.
Invisible Character Scanner
Reveal and remove zero-width or control characters in text.
Regex Tester
Highlight matches, inspect groups, and preview replacements in one screen.
Cron Expression Explainer
Convert Cron expressions into clear English and preview upcoming runs.
Character Counter
Count characters, lines, and bytes with live updates.
Base64 Encode/Decode
Convert text or files to Base64, decode Base64 strings, and split Data URLs.
HMAC G?n?rateur
Calculate HMAC-SHA256 locally with text/hex/base64 input and output.
SHA-256 Hash G?n?rateur
Generate SHA-256 hashes for text or files and verify checksums.
JWT Decoder
Decode JWT header/payload locally and view timestamps in UTC or local time.
Unix Time Convertisseur
Auto-detect 10/13 digits and convert Unix time to dates in seconds or milliseconds.
Timezone Convertisseur
Convert JST↔UTC and IANA time zones, highlight date rollovers, and copy results.
ETA Calculateur
Estimate arrival time from departure, distance, average speed, and breaks with timezone support.
Transport CO₂ Estimateur
Estimate transport CO₂e from distance, cargo weight, and mode (truck, rail, ship, air).
Dimensional Weight Calculateur
Compute billable weight from L×W×H and divisor, then compare against actual weight.
Packing Material Calculateur
Estimate carton count, tape length, and cushioning amount from shipment volume and box sizes.
Freight Class Helper
Estimate NMFC freight class from dimensions and weight using density bands.
Pallet & Container Chargering Calculateur
Calculate CBM, required pallets, and estimated 20ft/40ft container counts from box specs.
?tiquette & QR G?n?rateur
Generate shipment labels and QR/barcodes locally for A4/A6 layouts.
Logistics Unit Convertisseur
Convert logistics units in one screen: kg↔lb, cm↔inch, m³↔ft³, plus temperature and speed.
Charger Distribution V?rificateur
Check front/rear and left/right load balance with quick correction hints.
Concentration Convertisseur
Convert concentration units (% , ppm, mg/L, mol/L) with optional density-based mass/volume conversion.
Chemical Unit Convertisseur
Convert pressure, temperature, concentration (ppm↔mg/L), and viscosity (cP↔mPa·s) in one screen.
Dilution Calculateur (Single & Serial)
Compute stock and solvent volumes with C1V1=C2V2 and generate serial dilution tables from step factors.
Tank Mix & Dilution Calculateur
Calculate concentrate and water from spray rate, tank size, and dilution or concentration. Supports multiple materials and batch counts.
Spray Application Rate Calculateur
Calculate L/ha and gal/acre from speed, spray width, and flow rate with adjustment guidance.
Seeding Rate Calculateur
Calculate required seed count and seeding rate (kg/ha or lb/acre) from spacing and germination. Includes bag and sensitivity estimates.
Agri Unit Convertisseur
One-tap conversions for area, spray, and fertilizer units. ha↔acre, L/ha↔gal/acre, kg/ha↔lb/acre.
Irrigation Water Guide
Get per-session water range estimates from crop type, soil, weather, and irrigation method.
Soil pH Lime Calculateur
Estimate lime requirement ranges from current pH, target pH, soil type, and till depth.
Crop Yield Estimateur
Estimate yield ranges from area, spacing, average fruit weight, and fruits per plant.
NPK Fertilizer Calculateur
Match target N-P-K with available fertilizers and check shortages or excess.
Compost Entr?e Convertisseur
Convert wet weight and bulk density to dry matter and application rates (t/ha and m³/ha).
Lot Traceability ?tiquette G?n?rateur
Turn lot info into QR labels for cartons and containers. Export PDF/PNG with A4/US Letter and multi-label layouts.
Seafood Box ?tiquette Maker
Enter item, lot, catch date, weight, and temperature to generate box labels in PDF/PNG.
Box Chargering Calculateur
Estimate max boxes, layers, and leftover space from cargo and box sizes. Rotation, stacking limit, and margin supported.
Fish Yield Calculateur
Calculate edible yield and effective cost per kg from raw weight and loss breakdown. Multi-lot total supported.
Boat Fuel Cost Calculateur
Estimate fuel use and cost from distance, speed, fuel rate, and price. Ajouter segments and safety factor.
Brine Concentration Calculateur
Calculate salt needed from a target % with %w/w and %w/v modes, plus initial salinity support.
Rope Length Calculateur
Estimate mooring rope length from water depth, tide range, scope ratio, and safety factors.
Fish Ice Calculateur
Estimate required ice from fish mass, ambient temperature, and transport duration.
Seafood Thawing Time Guide
Estimate thawing time ranges by weight/thickness and method (refrigerator or running water).
Fish Length → Weight Estimateur
Estimate fish weight from length using W=aL^b with saved coefficient presets.
Traceability QR G?n?rateur
Create traceability QR codes from lot details, view payload text, and verify scanning in one screen.
Crop rotation planner
Visualize fields × crops × planting periods in a calendar-style table. Track fallow gaps and same-family warning tags.
Density Conversion (Mass ↔ Volume)
Convert mass and volume using density, with optional coefficient-based temperature correction.
Stoichiometry Calculateur
Calculate limiting reagent, excess, theoretical yield, and percent yield from coefficients and input amounts (g/mol/M×L).
Solution Preparation Tableau
Calculate reagent mass/volume from target concentration and final volume, with purity correction, multi-solute rows, scale-up table, and print/CSV.
Batch Scale-Up Calculateur
Scale formulations while preserving ratios. Appliquer loss/yield, minimum charging unit rounding, and export CSV in one flow.
Uncertainty Calculateur
Combine measurement uncertainties and report expanded uncertainty with confidence factor.
Significant Figures V?rificateur
Validate significant figures, scientific notation, and rounding rules for lab/report values.
Molecular Weight Calculateur
Calculate molar mass and elemental composition (mass %) from a chemical formula. Hydrates supported with copy/CSV/share URL.
pH/pOH Calculateur
Quick pH calculator for pH, pOH, and hydrogen ion concentration conversion with formulas and notes.
m² ↔ tsubo ↔ tatami Convertisseur
Convert length and area units with a required tatami size, plus a printable reference table.
Rebar Pitch Calculateur
Calculate count ↔ pitch, edge offsets, and coordinate lists for bar layouts.
Right Angle & Diagonal V?rificateur
Compute theoretical diagonals from sides or 3-4-5 and compare with measured values.
Anchor Bolt Layout
Convert count ↔ pitch with offsets, centered/flush rules, and remainders.
Slope/Grade Calculateur
Convert rise/run, percent, degrees, and 1:n ratios in one screen.
Tile/Flooring Layout Calculateur
Estimate cut widths, counts, and waste. Compare balanced vs minimum-waste layouts.
Formwork Area Calculateur
Calculate formwork area by member type with opening deduction rules.
Concrete Volume + Truck Estimate
Sum volumes by shape, add loss, and estimate ready-mix truck loads.
Scaffolding Area Estimate
Estimate scaffolding area from perimeter × height × coverage, plus accessories.
Voltage Drop Calculateur
Estimate voltage drop and review cable size candidates by drop only.
Formuletion Ratio Calculateur
Build weight/volume ratio tables, auto-scale to a target total, and check tolerance ranges.
Roof Area Calculateur (Pitch)
Compute sloped roof area from plan dimensions, pitch, and overhangs.
Material Loss Calculateur
Appliquer waste/yield and salvage rates, then round up by order unit.
Reorder Point Calculateur
Estimate safety stock and reorder point from demand and lead time variability.
EOQ Calculateur
Estimate economic order quantity from demand, ordering cost, and holding cost. Supports MOQ/lot rounding and bulk paste.
Paint Quantity Calculateur
Calculate paint volume by coverage, coats, dilution, and can sizes.
Staffing Calculateur
Estimate required staff from customer volume and average service time.
Margin & Markup Calculateur
Convert cost ↔ price and compute margin/markup with rounding options.
Discount Calculateur
Calculate % off, fixed, bundles, and tiered discounts with totals and rates.
Tiered Pricing Tableau G?n?rateur
Generate wholesale volume discount tiers from unit cost, margin floor, and quantity breaks. Includes CSV export.
Bundle Cost & Margin Calculateur
Allocate bundle costs and compute margin impact across pricing scenarios.
Wholesale to Retail Pricing Calculateur
Convert wholesale costs to landed cost and recommended retail ranges with margin/markup targets, tax, FX, and shipping allocation.
Packing ?tiquette G?n?rateur
Create packing labels from shipment rows with print-ready layouts and CSV export.
Currency Price Optimizer
Convert prices with a manual rate and optimize endings like .99/.95/integers.
Pipe Size Graphique
Lookup Nonminal ↔ OD/ID/thickness by standard set with print-ready tables.
URL Encode/Decode
Encode or decode URLs and query values with percent-encoding.
QR Code G?n?rateur
Generate QR codes from URLs or text and download SVG/PNG.
Barcode & QR Analyseur
Paste scan strings to split, normalize, and copy them. GS1 is parsed where possible.
Price Card Maker
Create printable price tags on A4/US Letter with optional barcodes.
JSON Formateur & Minifier
Format or minify JSON with error location, key sorting, and copy.
CSV/TSV Convertisseur
Convert CSV and TSV (comma <-> tab) with proper quoting and multiline cell support.
CSV Deduplicator
Retirer duplicate rows by key columns and merge non-empty values.
CSV ?diteur
Aper?u CSV and edit columns (delete, reorder, split, merge) locally in your browser.
Tax Convertisseur
Convert inclusive/exclusive tax instantly with rounding and multi-row paste support.
Cash Rounding Tool
Round amounts by step (0.05/0.10/1) with nearest/ceil/floor rules.
CSV to JSON Convertisseur
Convert CSV to JSON with header detection, type inference, and empty cell handling.
YAML↔JSON↔TOML Convertisseur
Convert between YAML/JSON/TOML with auto-detect, formatting, and copy.
JSON Key Sorter
Sort JSON keys A→Z (all levels or top-level only) for clean diffs.
Markdown Aper?u
Instant md->HTML preview with local conversion and copy/download.
Markdown TOC G?n?rateur
Generate a Markdown table of contents from headings with H2-H4 options.
Image Resizer & Compressor
Resize and compress images locally with preview and quality control.
Image Format Convertisseur
Convert PNG/JPEG/WebP locally with quality and transparency options.
SVG Visionneuse
Paste SVG markup and check the rendered output instantly in your browser.
Line Shuffler
Shuffle lines randomly for raffles, seating, or task rotation.
Line Sorter
Sort lines in ascending, descending, or length-based order.
List Convertisseur
Convert between •, -, and 1. lists with indentation control.
Prefix/Suffix Ajouterer
Ajouter text to the start or end of each line in bulk.
Markdown Tableau Formateur
Align Markdown table columns while keeping alignment markers intact.
Dupliquer Line Retirerr
Keep only unique lines and remove duplicates from lists.
Quote Nonrmalizer
Unify quotes, brackets, and quotation marks to one style.
Full-width/Half-width Convertisseur
Convert between full-width and half-width characters in bulk.
Password G?n?rateur
Generate secure passwords locally, with instant copy and strength guidance.
OGP Tag G?n?rateur
Generate OGP and Twitter Card meta tags from URL, title, description, and image.
FAQ JSON-LD G?n?rateur
Generate FAQPage JSON-LD from Q&A with script tag output and testing tips.
robots.txt G?n?rateur
Build a robots.txt template with Allow/Disallow rules and Sitemap lines.
Right Angle & Diagonal Checker
Compute theoretical diagonals from sides or 3-4-5 and compare with measured values.
Anchor Bolt Layout
Convert count ↔ pitch with offsets, centered/flush rules, and remainders.
Slope/Grade Calculator
Convert rise/run, percent, degrees, and 1:n ratios in one screen.
Tile/Flooring Layout Calculator
Estimate cut widths, counts, and waste. Compare balanced vs minimum-waste layouts.
Formwork Area Calculator
Calculate formwork area by member type with opening deduction rules.
Concrete Volume + Truck Estimate
Sum volumes by shape, add loss, and estimate ready-mix truck loads.
Scaffolding Area Estimate
Estimate scaffolding area from perimeter × height × coverage, plus accessories.
Voltage Drop Calculator
Estimate voltage drop and review cable size candidates by drop only.
Formulation Ratio Calculator
Build weight/volume ratio tables, auto-scale to a target total, and check tolerance ranges.
Roof Area Calculator (Pitch)
Compute sloped roof area from plan dimensions, pitch, and overhangs.
Material Loss Calculator
Apply waste/yield and salvage rates, then round up by order unit.
Reorder Point Calculator
Estimate safety stock and reorder point from demand and lead time variability.
EOQ Calculator
Estimate economic order quantity from demand, ordering cost, and holding cost. Supports MOQ/lot rounding and bulk paste.
Paint Quantity Calculator
Calculate paint volume by coverage, coats, dilution, and can sizes.
Staffing Calculator
Estimate required staff from customer volume and average service time.
Margin & Markup Calculator
Convert cost ↔ price and compute margin/markup with rounding options.
Discount Calculator
Calculate % off, fixed, bundles, and tiered discounts with totals and rates.
Tiered Pricing Table Generator
Generate wholesale volume discount tiers from unit cost, margin floor, and quantity breaks. Includes CSV export.
Bundle Cost & Margin Calculator
Allocate bundle costs and compute margin impact across pricing scenarios.
Wholesale to Retail Pricing Calculator
Convert wholesale costs to landed cost and recommended retail ranges with margin/markup targets, tax, FX, and shipping allocation.
Packing Label Generator
Create packing labels from shipment rows with print-ready layouts and CSV export.
Currency Price Optimizer
Convert prices with a manual rate and optimize endings like .99/.95/integers.
Pipe Size Chart
Lookup Nominal ↔ OD/ID/thickness by standard set with print-ready tables.
URL Encode/Decode
Encode or decode URLs and query values with percent-encoding.
QR Code Generator
Generate QR codes from URLs or text and download SVG/PNG.
Barcode & QR Parser
Paste scan strings to split, normalize, and copy them. GS1 is parsed where possible.
Price Card Maker
Create printable price tags on A4/US Letter with optional barcodes.
JSON Formatter & Minifier
Format or minify JSON with error location, key sorting, and copy.
CSV/TSV Converter
Convert CSV and TSV (comma <-> tab) with proper quoting and multiline cell support.
CSV Deduplicator
Remove duplicate rows by key columns and merge non-empty values.
CSV Editor
Preview CSV and edit columns (delete, reorder, split, merge) locally in your browser.
Tax Converter
Convert inclusive/exclusive tax instantly with rounding and multi-row paste support.
Cash Rounding Tool
Round amounts by step (0.05/0.10/1) with nearest/ceil/floor rules.
CSV to JSON Converter
Convert CSV to JSON with header detection, type inference, and empty cell handling.
YAML↔JSON↔TOML Converter
Convert between YAML/JSON/TOML with auto-detect, formatting, and copy.
JSON Key Sorter
Sort JSON keys A→Z (all levels or top-level only) for clean diffs.
Markdown Preview
Instant md->HTML preview with local conversion and copy/download.
Markdown TOC Generator
Generate a Markdown table of contents from headings with H2-H4 options.
Image Resizer & Compressor
Resize and compress images locally with preview and quality control.
Image Format Converter
Convert PNG/JPEG/WebP locally with quality and transparency options.
SVG Viewer
Paste SVG markup and check the rendered output instantly in your browser.
Line Shuffler
Shuffle lines randomly for raffles, seating, or task rotation.
Line Sorter
Sort lines in ascending, descending, or length-based order.
List Converter
Convert between •, -, and 1. lists with indentation control.
Prefix/Suffix Adder
Add text to the start or end of each line in bulk.
Markdown Table Formatter
Align Markdown table columns while keeping alignment markers intact.
Duplicate Line Remover
Keep only unique lines and remove duplicates from lists.
Quote Normalizer
Unify quotes, brackets, and quotation marks to one style.
Full-width/Half-width Converter
Convert between full-width and half-width characters in bulk.
Password Generator
Generate secure passwords locally, with instant copy and strength guidance.
OGP Tag Generator
Generate OGP and Twitter Card meta tags from URL, title, description, and image.
FAQ JSON-LD Generator
Generate FAQPage JSON-LD from Q&A with script tag output and testing tips.
robots.txt Generator
Build a robots.txt template with Allow/Disallow rules and Sitemap lines.