Find the right tool. Instantly.
176 free online tools to simplify your work, save time, and get more done.
Merge PDF
Combine multiple PDFs into one file online — privately in your browser, no upload.
PDFInstantSplit PDF
Split a PDF online — extract page ranges or download every page as a ZIP of single-page PDFs.
PDFInstantCompress PDF
Shrink PDFs online for email and uploads — processing stays on your device.
PDFInstantPDF Metadata Editor
Change title, author, subject, and keywords without uploading your file.
PDFInstantRemove Blank Pages
Clean scanned PDFs by detecting and removing near-blank pages.
PDFInstantRotate PDF
Fix sideways scans by rotating all pages at once.
PDFInstantImages to PDF
Convert images to PDF online — turn JPG and PNG photos into a multi-page PDF locally.
PDFInstantExtract PDF Pages
Pull specific pages into a new PDF — pick from a grid or type ranges.
PDFInstantReorder PDF Pages
Rearrange pages before you share or print — privately on your device.
PDFInstantPDF to Images
Convert PDF pages to images online — export every page as JPG or PNG in a ZIP.
PDFInstantCompress PDF to Size
Hit upload size caps by stepping quality until you reach a target MB.
PDFInstantEdit PDF
Add text, images, and shapes to your PDF — privately on your device.
PDFInstantWatermark PDF
Stamp confidential or brand text across every page — locally.
PDFInstantDelete PDF Pages
Remove unwanted pages from a PDF — privately on your device.
PDFInstantAdd Page Numbers
Add consistent page numbers to reports and merged packets.
PDFInstantProtect PDF
Password-protect a PDF before you share it — encryption runs locally.
PDFInstantUnlock PDF
Remove a password you already know — we do not crack protected files.
PDFInstantFlatten PDF
Turn fillable form fields into permanent page content.
PDFInstantPDF to Grayscale
Convert color PDFs to grayscale for print or smaller files.
PDFInstantPDF to Text
Copy text out of digital PDFs — not for image-only scans (use OCR).
PDFInstantPDF to Word
Convert PDF to Word online — download an editable DOCX from a text-based PDF, privately in your browser.
PDFInstantCrop PDF
Trim margins on every page with a simple percentage crop.
PDFInstantOCR PDF
Recognize text in scanned PDFs locally with Tesseract (English).
PDFInstantSign PDF
Add your signature image to a PDF page — locally, without an eSign service.
PDFInstantRedact PDF
Cover sensitive areas with black boxes before you share a PDF.
PDFInstantCompare PDF
Compare text from two PDF versions — locally.
PDFInstantRepair PDF
Try to rebuild a problematic PDF by copying pages into a fresh file.
PDFInstantPDF to PDF/A
Prepare a PDF for archival with flatten and metadata — best effort, not certified PDF/A.
PDFInstantN-up PDF
Create 2-up or 4-up sheets for compact printing.
PDFInstantImage Compressor
Free online image compressor for JPG, PNG, and WebP — shrink files for the web and email without uploading.
ImagesInstantImage Resizer
Resize images online to exact dimensions for web, social, and thumbnails — privately in your browser.
ImagesInstantImage Converter
Convert images online between JPEG, PNG, and WebP without leaving your device.
ImagesInstantEXIF Metadata Remover
Strip GPS, camera, and other embedded tags before you share a photo — no upload required.
ImagesInstantHEIC to JPG
Convert iPhone HEIC photos to universal JPG files online — decoded locally, no upload.
ImagesInstantImage Color Picker
Extract colors from any image online — click a pixel for HEX, RGB, HSL, and HSV.
ImagesInstantQR Code Generator
Generate custom QR codes online — colors, styles, and center logo — then download a PNG.
ImagesInstantImage Cropper
Crop images online to free or fixed aspect ratios — privately in your browser.
ImagesInstantRotate & Flip
Rotate and flip images online to fix sideways photos — no upload required.
ImagesInstantCompress to Size
Compress an image to a target file size online for forms and uploads — quality search runs locally.
ImagesInstantImage to Base64
Encode images as Base64 data URLs online for CSS and embeds — locally.
ImagesInstantBase64 to Image
Turn Base64 strings and data URLs into downloadable PNG or JPG files online — locally.
ImagesInstantSVG to PNG
Convert SVG to PNG online for slides, docs, and social — rendered on your device.
ImagesInstantSVG to JPG
Export SVG artwork as JPEG online with adjustable quality and a solid background.
ImagesInstantSVG Viewer
Preview SVG graphics online, zoom in, and inspect cleaned markup — safely in your browser.
ImagesInstantWatermark Image
Stamp text or a logo on photos online before you share them — no upload required.
ImagesInstantImage Overlay
Layer a PNG, logo, or solid color on a photo with free placement, size, and opacity — processed in your browser.
ImagesInstantWatermark Remover
Brush over a visible watermark and fill it with local Telea inpainting — your image stays in the browser, with no large model download.
ImagesInstantBackground Remover
Remove image backgrounds online with an on-device AI model — download a transparent PNG without uploading your photo to The ToolSphere.
ImagesInstantImage to Text
Extract text from an image online with free OCR — select words on the photo and copy what you need, privately in your browser.
ImagesInstantJSON Formatter
Paste JSON to validate, beautify, or minify instantly — privately on your device.
DeveloperInstantRegex Tester
Write a pattern, set flags, and see matches and groups update live.
DeveloperInstantDiff Checker
Find differences between two text files with unified or split views — like GitHub.
DeveloperInstantPassword Generator
Create cryptographically random passwords with length and character-set controls.
DeveloperInstantJWT Decoder
Paste a JWT to inspect header, payload, and expiry — locally.
DeveloperInstantHash Generator
Hash text for checksums and cache keys — locally with Web Crypto (MD5 for legacy checksums only).
DeveloperInstantBase64 Encode / Decode
Convert text to Base64 and back — including URL-safe variants.
DeveloperInstantUUID Generator
Create one or many UUID v4 values for fixtures, IDs, and test data.
DeveloperInstantURL Encoder / Decoder
Encode or decode URI components for query strings and path segments.
DeveloperInstantCron Expression Generator
Assemble a standard cron schedule and get a plain-English field summary.
DeveloperInstantYAML Formatter
Beautify and validate YAML — then copy JSON if you need it.
DeveloperInstantSQL Formatter
Break long SQL onto keyword lines for readable diffs and reviews.
DeveloperInstantJWT Generator
Build a signed HS256 JWT from header claims, payload, and a secret.
DeveloperInstantURL Parser
Split a URL into components and query parameters for debugging.
DeveloperInstantJSON Diff
Diff two JSON trees by path — locally, without uploading payloads.
DeveloperInstantCron Parser
Explain minute, hour, day, month, and weekday fields from any classic cron string.
DeveloperInstantContrast Checker
Test foreground and background colors against WCAG AA and AAA contrast requirements.
DesignInstantColor Converter
Convert any color between HEX, RGB, and HSL with a live swatch.
DesignInstantColor Palette Generator
Build harmonious palettes from one base color using classic color-theory modes.
DesignInstantImage Color Picker
Extract colors from any image instantly — click a pixel for HEX, RGB, HSL, and HSV. No signup. No uploads.
DesignInstantFavicon Generator
Create favicon sizes from a letter mark or image — entirely in your browser.
DesignInstantBox Shadow Generator
Tune a box shadow visually and copy the CSS in one click.
DesignInstantGradient Generator
Build linear or radial gradients and copy ready-to-use CSS.
DesignInstantBorder Radius Generator
Tune each corner independently and copy the border-radius CSS in one click.
DesignInstantCSS Filter Generator
Adjust filter properties visually on a gradient preview and copy the CSS.
DesignInstantCSS Unit Converter
Convert a CSS length to all common units using your root font size and viewport settings.
DesignInstantText Shadow Generator
Tune text shadow offset, blur, and color with a live preview and copy the CSS.
DesignInstantTypography Scale Generator
Pick a base size and scale ratio to generate type steps and export CSS variables.
DesignInstantWord Counter
Count words and characters online as you type — reading and speaking time update live.
TextInstantCharacter Counter
Track character count against common social and SEO limits while you write.
TextInstantWord Frequency
See which words appear most often and their density — useful for editing and light SEO checks.
TextInstantText Diff Checker
Compare two texts online side by side — unified or split diff, like GitHub.
TextInstantCase Converter
Switch between common letter cases and coding styles in one click.
TextInstantSlug Generator
Convert a title or phrase into a clean, hyphenated URL slug.
TextInstantReverse Text
Flip text by character, word, or line for puzzles, checks, and formatting tricks.
TextInstantList Converter
Reformat lists between commas, lines, bullets, and numbers.
TextInstantROT13 Encoder
Apply ROT13 to letters A–Z. Run again to decode.
TextInstantText ↔ Binary
Translate between plain text and 8-bit binary codes.
TextInstantHTML Entity Encoder
Escape or unescape common HTML entities for safe display in markup.
TextInstantText Cleaner
Fix spacing and blank lines after pasting from docs, PDFs, or chat.
TextInstantFind and Replace
Search and replace across your draft with plain text or regular expressions.
TextInstantRemove Duplicate Lines
Deduplicate line lists for emails, URLs, tags, or inventory exports.
TextInstantRemove Empty Lines
Delete blank lines so your list or draft is compact.
TextInstantSort Lines
Alphabetize lists, names, tags, or any one-item-per-line text.
TextInstantRemove Line Breaks
Turn hard-wrapped text into a continuous paragraph with a separator you choose.
TextInstantAdd Line Numbers
Number every line for scripts, lyrics, logs, or review notes.
TextInstantExtract Emails
Scan pasted content and list unique email addresses found.
TextInstantExtract URLs
Collect unique web links from notes, emails, or scraped copy.
TextInstantReadability Checker
Measure how easy your text is to read with Flesch Reading Ease and grade-level estimates.
TextInstantPassive Voice Checker
Find likely passive constructions so you can tighten unclear sentences.
TextInstantSentence Analyzer
See which sentences are long and hard to read, then break them up.
TextInstantFiller Words Checker
Spot fillers and -ly adverbs so you can cut fluff and sharpen tone.
TextInstantSpell Checker
Find likely misspellings against a local English word list and see simple suggestions.
TextInstantPunctuation Checker
Scan for common punctuation and spacing issues before you publish.
TextInstantConfused Words Checker
Flag look-alike words so you can confirm you picked the right one.
TextInstantTip Calculator
Find tip amount, total with tip, and equal split per person. Runs locally in your browser — no signup and no data sent to a server.
CalculatorsInstantPercentage Calculator
Solve percent-of, reverse percent, and percent change problems instantly. Processing stays on your device.
CalculatorsInstantDiscount Calculator
Enter the original price and discount percent to see savings and the final price. No signup — runs locally.
CalculatorsInstantGPA Calculator
Add courses with letter grades and credits to get a weighted GPA on the common 4.0 scale. All math stays in your browser.
CalculatorsInstantScientific Calculator
A browser-based scientific calculator for everyday math, trig, and logs. Runs locally — nothing is uploaded.
CalculatorsInstantAverage Calculator
Paste or type a list of numbers to get mean, median, mode, count, and sum. Processing stays on your device.
CalculatorsInstantUnit Price Calculator
Divide total price by quantity to get price per unit — useful for groceries and bulk buys. Runs in your browser.
CalculatorsInstantFuel Cost Calculator
Estimate how much fuel a trip needs and what it costs. Enter distance, efficiency, and price per gallon or liter — all local math.
CalculatorsInstantBMI Calculator
Compute body mass index from height and weight, then see the WHO screening category. Runs locally — not a clinical assessment.
CalculatorsInstantSalary to Hourly Calculator
Convert between annual salary and hourly pay using your hours per week and weeks per year. Gross figures only — no tax withholding.
CalculatorsInstantOvertime Pay Calculator
Estimate gross pay with regular and overtime hours at 1.5× or 2× multipliers. Not payroll or legal advice.
CalculatorsInstantProfit Margin Calculator
Find profit, profit margin, and markup from cost and price — or set a target margin to get the required sell price.
CalculatorsInstantBody Fat Calculator
Estimate body fat percentage from height and circumference measurements using the US Navy method. Private, local math — not a clinical diagnosis.
CalculatorsInstantIdeal Weight Calculator
Get a Devine-formula ideal weight estimate from height and sex. Screening math only — not a health target prescription.
CalculatorsInstantMacro Calculator
Convert a calorie target into protein, carbohydrate, and fat grams using your chosen percentages.
CalculatorsInstantProtein Intake Calculator
Multiply body weight by a grams-per-kilogram factor to estimate daily protein. Not dietary advice.
CalculatorsInstantWater Intake Calculator
Estimate daily fluid volume from body weight using a simple ml-per-kg rule of thumb.
CalculatorsInstantHeart Rate Zone Calculator
Estimate maximum heart rate and five training zones from age using the common 220 − age rule.
CalculatorsInstantSleep Cycle Calculator
Pick a wake-up time and see bedtime options based on ~90-minute cycles plus a short fall-asleep buffer.
CalculatorsInstantRunning Pace Calculator
Enter race or run distance and finish time to get average pace per kilometer and speed.
CalculatorsInstantPregnancy Due Date Calculator
Estimate a due date from the first day of the last menstrual period using Naegele’s rule (LMP + 280 days).
CalculatorsInstantOvulation Calculator
Estimate ovulation and a fertile window from last period date and average cycle length. Not contraception or medical advice.
CalculatorsInstantBreak-Even Calculator
Find how many units you need to sell to cover fixed costs given price and variable cost per unit.
CalculatorsInstantBudget Calculator
Add income and expense lines to see total spending and what remains.
CalculatorsInstantFreelance Rate Calculator
Work out a target hourly rate from desired annual income, yearly expenses, billable hours, and time off.
CalculatorsInstantFraction Calculator
Perform fraction arithmetic and simplify results automatically in your browser.
CalculatorsInstantGCF Calculator
Calculate the greatest common factor of two whole numbers using the Euclidean algorithm.
CalculatorsInstantLCM Calculator
Calculate the least common multiple of two whole numbers from their GCF.
CalculatorsInstantProbability Calculator
Enter probabilities between 0 and 1 for two independent events to get AND and OR results.
CalculatorsInstantCombination Calculator
Compute how many ways to choose r items from n when order does not matter (nCr).
CalculatorsInstantPermutation Calculator
Compute how many ordered arrangements of r items from n (nPr).
CalculatorsInstantZakat Calculator
Estimate zakat from total zakatable wealth and a nisab threshold using a configurable rate (default 2.5%).
CalculatorsInstantGold Zakat Calculator
Estimate zakat on gold holdings from grams, price per gram, and a nisab weight threshold.
CalculatorsInstantSalary After Tax Calculator
Apply a custom tax percentage to gross pay for a quick net estimate. Not official tax software.
CalculatorsInstantElectricity Cost Calculator
Multiply energy use (kWh) by your rate to estimate cost for a period you choose.
CalculatorsInstantCost of Living Calculator
Compare a home-city cost basket to another city’s basket using totals you provide — no external price database.
CalculatorsInstantLength Converter
Convert between metric and imperial lengths with live results for every unit.
UnitsInstantWeight Converter
Convert kg ↔ lbs and other mass units with exact international factors.
UnitsInstantTemperature Converter
See Celsius, Fahrenheit, and Kelvin update together as you type.
UnitsInstantArea Converter
Convert land and surface areas across metric and imperial units.
UnitsInstantVolume Converter
Convert cooking and liquid volumes between metric and US/UK units.
UnitsInstantSpeed Converter
Convert everyday and aviation speeds with live results for every unit.
UnitsInstantPressure Converter
Convert tire, plumbing, and engineering pressures across common units.
UnitsInstantEnergy Converter
Convert food, HVAC, and physics energy units in one live table.
UnitsInstantPower Converter
Convert electrical and mechanical power units, including HVAC cooling tons.
UnitsInstantData Size Converter
Convert bytes through terabytes with a SI vs IEC (binary) toggle.
UnitsInstantUnix Timestamp Converter
Convert epoch seconds or milliseconds to readable dates — and the other way around.
Date & TimeInstantAge Calculator
Find exact age in years, months, and days — plus days until the next birthday.
Date & TimeInstantTime Zone Converter
Pick a date and time in one zone and see the same moment across other cities.
Date & TimeInstantTime Difference Calculator
See how many hours and minutes separate two time zones on a given date.
Date & TimeInstantDate Calculator
Add or subtract time from a date, or count calendar and business days between two dates.
Date & TimeInstantWeek Number Calculator
Get the ISO week number and weekday for any calendar date.
Date & TimeInstantCountdown / Days Until
See how many days remain until an event — or how long since it passed.
Date & TimeInstantHours Calculator
Find elapsed hours between a start and end clock time — overnight shifts included.
Date & TimeInstantTime Calculator
Add or subtract hours, minutes, and seconds from any clock time.
Date & TimeInstantTime Duration Calculator
Measure elapsed time between two date-times down to the second.
Date & TimeInstantWork Hours Calculator
Get net shift hours after unpaid breaks — in hh:mm and decimal hours.
Date & TimeInstantCSV to JSON
Convert CSV to JSON online — paste or load a file and get clean objects privately on your device.
ConvertersInstantJSON to CSV
Turn an array of JSON objects into comma-separated CSV on your device—headers from keys, nested values kept as JSON text in cells.
ConvertersInstantText to PDF
Convert plain text to PDF online — paste a .txt draft and download a simple A4 PDF locally.
ConvertersInstantSTL Viewer
Preview 3D STL meshes online — orbit, zoom, and inspect model size privately in your browser.
CADInstantOBJ Viewer
Open Wavefront OBJ models online and inspect them with orbit, zoom, and pan — locally.
CADInstantGLB Viewer
Open a GLB or GLTF file in a free online 3D viewer — orbit, zoom, and check bounds privately in your browser.
CADInstantDXF Viewer
Preview DXF CAD drawings online — lines, polylines, arcs, and circles render locally.
CADInstantOBJ Editor
Edit an OBJ model online — transform with gizmos, toggle wireframe, recolor, then download an updated .obj.
CADInstantGLB Editor
Edit a GLB/GLTF model online — transform with gizmos, toggle wireframe, recolor, then download an updated .glb.
CADInstant2D CAD Sketch Editor
Sketch simple 2D CAD geometry online — lines, rectangles, and circles — then download SVG.
CADInstantTyping Speed Test
Take a free typing test online — measure words per minute (WPM) and accuracy instantly in your browser.
SpeedInstantReaction Time Test
Test your reaction time online — click when the screen turns green and see your score in milliseconds.
SpeedInstantCPS Test
Run a free CPS test (clicks per second) — pick 1, 5, or 10 seconds and click as fast as you can.
SpeedInstantInternet Speed Test
Run a free internet speed test — estimate download Mbps, upload Mbps, and ping from your browser with no paid speed-test service.
SpeedInstantPing Test
Check ping/latency online with free public endpoints — or time a custom URL that allows browser requests.
SpeedInstant