Fair Toolbox

Free online tools that run in your browser. No signup. No tracking links.

QR Code Generator

Make QR codes for URLs, WiFi, contacts, WhatsApp and email. No tracking links added.

Generator

JSON Formatter

Paste minified or messy JSON and get clean, indented output. Shows errors for invalid JSON.

Formatter

Base64 Encoder

Encode any text or string to Base64 instantly. Useful for embedding data, APIs, and more.

Encoder

Base64 Decoder

Decode a Base64 string back to plain text. Inspect tokens, payloads, and encoded data.

Decoder

URL Encoder

Encode text for safe use in URLs and query parameters. Handles special characters and Unicode.

Encoder

URL Decoder

Decode percent-encoded URLs back to readable text. See what's behind %20 and %3D.

Decoder

Markdown to HTML

Convert Markdown syntax to clean HTML. Supports headings, lists, links, code blocks, and more.

Converter

HTML to Markdown

Convert HTML markup back to clean Markdown syntax. Great for migrating content.

Converter

Word Counter

Count words, characters, sentences, and paragraphs in any text. Live updating.

Counter

Color Picker

Pick a color and convert between HEX, RGB, and HSL formats instantly.

Converter

CSV to JSON

Convert CSV data to JSON format. Uses the first row as keys.

Converter

JSON to CSV

Convert JSON arrays to CSV format for spreadsheets and data tools.

Converter

Lorem Ipsum Generator

Generate placeholder text by paragraph, sentence, or word count.

Generator

Password Generator

Generate strong, random passwords with customizable length and character types.

Generator

Hash Generator

Generate SHA-256, SHA-1, and SHA-512 cryptographic hashes from any text.

Generator

UUID Generator

Generate one or many random UUIDs (v4) instantly. Copy with one click.

Generator

Case Converter

Convert text between UPPER, lower, Title, camelCase, snake_case, and more.

Converter

Text Diff Checker

Compare two texts side by side and see differences highlighted line by line.

Comparator

Regex Tester

Test regular expressions against text. See matches highlighted in real time.

Tester

YAML / JSON Converter

Convert between YAML and JSON formats in either direction.

Converter

JWT Decoder

Decode JSON Web Tokens and inspect the header, payload, and expiration.

Decoder

JSON Minifier

Compress JSON by removing all whitespace and formatting. Opposite of formatter.

Formatter

HTML Entity Converter

Encode special characters to HTML entities and decode them back.

Converter

Number Base Converter

Convert numbers between binary (base 2), octal (8), decimal (10), and hex (16).

Converter

Cron Expression Parser

Parse cron expressions and see them explained in plain English with next run times.

Tool

Markdown Preview

Write Markdown and see the rendered HTML preview updating in real time.

Tool

Aspect Ratio Calculator

Find the ratio of any size, or the height that matches a width and ratio.

Tool

Text to Speech

Read any text aloud using your browser's built-in speech synthesis. Choose voice and speed.

Tool

Unit Converter

Convert between units of length, weight, and temperature. Metric and imperial.

Converter

Timecode Writer

Log timestamped editing notes while a timer runs. Export as text for video and podcast review.

Tool

JSON Validator

Validate JSON syntax and find errors with line numbers.

Tool

XML Formatter

Pretty-print and format XML with proper indentation.

Formatter

CSS Minifier

Minify CSS by removing comments, whitespace, and unnecessary characters.

Tool

SQL Formatter

Format and beautify SQL queries with proper indentation.

Formatter

HTML Formatter

Beautify and format HTML code with proper indentation.

Formatter

Email Signature Generator

Create a professional HTML email signature with your details.

Generator

Barcode Generator

Generate barcodes in CODE128, EAN-13, UPC, and other formats.

Generator

Chmod Calculator

Calculate Unix file permissions in numeric and symbolic notation.

Calculator

Text Reverser

Reverse any text backwards, character by character.

Tool

Binary Translator

Convert text to binary code and binary back to text.

Converter

CSS Gradient Generator

Create linear and radial CSS gradients with a visual editor.

Generator

Roman Numeral Converter

Convert numbers and dates to Roman numerals, and check a Roman numeral date.

Converter

Number to Words

Spell out any number in English words.

Converter

Text Unwrapper

Remove the line breaks from text copied out of a PDF or email, keeping real paragraphs.

Formatter

List Sorter

Alphabetize lines A–Z or Z–A, sort numbers naturally, shuffle, and remove duplicates.

Tool

PNG to JPG Converter

Convert PNG images to JPG format. Reduce file size while keeping good quality.

Converter

JPG to PNG Converter

Convert JPG images to PNG format. Get lossless quality and transparency support.

Converter

WebP to PNG Converter

Convert WebP images to widely compatible PNG format. Open WebP files anywhere.

Converter

Image to Base64

Convert any image to a Base64 data URI for embedding in HTML, CSS, or JSON.

Encoder

SVG to PNG Converter

Convert SVG vector graphics to PNG images at any size. No upload needed.

Converter

Image Resizer

Resize images to exact dimensions. Maintains aspect ratio by default.

Tool

Image Compressor

Reduce image file size with adjustable quality. See the size before and after.

Tool

Favicon Generator

Generate 16x16, 32x32, and 48x48 favicon PNGs from any image.

Generator

Image Cropper

Crop images visually by dragging a selection area on the image.

Tool

Image Rotator

Rotate images 90/180/270 degrees or flip them horizontally and vertically.

Tool

Image Watermark

Add a customizable text watermark to any image. Control size, position, and opacity.

Tool

Color Palette Generator

Upload an image and extract its dominant colors as a palette.

Extractor

HEIC to JPG

Convert HEIC/HEIF images from iPhone to JPG format.

Converter

Video Frame Extractor

Capture a single frame from any video and download it as a PNG image.

Extractor

Photo Metadata Remover

See and remove photo location, date and camera details (EXIF) from JPG, PNG, WebP and HEIC.

Tool

Photo Redactor

Black out license plates, faces and personal details in a photo or screenshot.

Tool

Square Image Maker

Make a photo square without cropping, with a white, black or blurred background.

Tool

DPI Changer

Set a JPG or PNG to 300 DPI without re-compressing it, and see the print size.

Tool

Video Rotator

Fix a sideways MP4 or MOV video instantly, without re-encoding or uploading it.

Tool

QR Code Reader

Decode a QR code from a photo, screenshot or camera and see where the link really goes.

Decoder

PDF Splitter

Extract specific pages or page ranges from a PDF file. No upload needed.

PDF

PDF Merger

Combine multiple PDF files into a single document. Drag to reorder before merging.

PDF

PDF to Images

Convert each page of a PDF into a downloadable PNG image.

Converter

Images to PDF

Combine multiple images (JPG, PNG, WebP) into a single downloadable PDF.

Converter

Sign & Fill PDF

Fill form fields, add text, and place a signature on a PDF, then download the finished file.

PDF

PDF Compressor

Reduce PDF file size by removing unused objects and optimizing the structure.

PDF

PDF Page Rotator

Rotate all pages in a PDF by 90, 180, or 270 degrees.

PDF

PDF Password Protector

Add a password to any PDF file. The recipient must enter it to open the document.

PDF

PDF Password Remover

Unlock a PDF with its password, or remove print and copy restrictions.

PDF

PDF to Markdown

Convert a PDF into clean Markdown with headings and tables.

Converter

PDF Text Extractor

Extract and copy selectable text from any PDF file.

Extractor

PDF Page Size

Make every page of a PDF the same size: Letter, A4, Legal or the first page's size.

PDF

Flatten PDF / Fix Blank Form

Make filled form fields show in every viewer, then flatten them into the page.

PDF

Redact PDF

Black out text in a PDF for real: covered text is removed, not just hidden. Also checks a PDF for hidden text.

PDF

Contacts Converter

Excel or CSV to a .vcf for iPhone, and .vcf to an Outlook or Google CSV.

Converter

Email File Opener

Open winmail.dat, Outlook .msg and .eml files and save their attachments.

Extractor

CSV Splitter

Split a CSV too large for Excel into parts, header repeated in each one.

Tool

CSV Fixer for Excel

Fix weird characters, wrong delimiters and lost leading zeros before Excel opens a CSV.

Tool

File Checksum

SHA-256, MD5, SHA-1 and SHA-512 of any file, even large ISOs, checked against the expected hash.

Tool

WAV to MP3 Converter

Convert WAV audio files to MP3 directly in your browser. No upload, no server processing.

Converter

MP3 to WAV Converter

Convert MP3 audio files to WAV directly in your browser. No upload, no server processing.

Converter

Audio to MP3 Converter

Convert M4A, WebM, MP4 and other audio or video to MP3, or record straight to MP3. No upload.

Converter

Audio Splitter

Trim audio files by setting start and end times. Export the segment as WAV.

Audio

Audio Merger

Combine multiple MP3 or WAV files into a single audio file.

Audio

Audio Speed Changer

Speed up or slow down audio files from 0.5x to 3x. Preview and download as WAV.

Audio

Audio Volume Booster

Increase or decrease audio volume by a percentage. Preview and download as WAV.

Audio

Audio Reverser

Play any audio file, or your own recorded voice, backwards. Download as WAV.

Audio

Ringtone Maker

Cut a 30-second ringtone with fade in and out from any MP3, WAV or M4A.

Audio

Audio Channel Fixer

Fix audio that plays in only one ear: copy left or right to both, mix to mono or swap.

Audio

BMI Calculator

Calculate your Body Mass Index from height and weight. Metric and imperial.

Calculator

Tip Calculator

Calculate tip amount and split the total bill between any number of people.

Calculator

Interest Calculator

Calculate simple and compound interest. See total growth over time.

Calculator

Inflation Calculator

Calculate what an amount from any year is worth today — in USD, GBP, EUR, and 7 more currencies.

Calculator

Age Calculator

Calculate your exact age in years, months, and days from your birthdate.

Calculator

Percentage Calculator

Calculate what percent of a number, percentage change, and more.

Calculator

Mortgage Calculator

Calculate monthly mortgage payments, total interest, and amortization.

Calculator

Discount Calculator

Calculate the final sale price and how much you save after a discount.

Calculator

Prorated Rent Calculator

Partial-month rent for a move-in or move-out date, three methods compared.

Calculator

Hours Calculator

Timesheet totals with breaks and overnight shifts, in h:mm and decimal hours.

Calculator

Bill Splitter

Split an itemized bill with tax and tip; everyone's shares add up to the exact total.

Calculator

Timestamp Converter

Convert Unix timestamps to human-readable dates and back. Shows your local timezone.

Converter

Day of Week Calculator

Find what day of the week any date falls on. Also shows days until/since and age.

Calculator

Timer

Set a countdown timer for any duration. Plays a sound when time is up.

Tool

Date Difference Calculator

Calculate the exact days, weeks, months, and years between any two dates.

Calculator

Countdown Timer

Count down to any date — see days, hours, minutes, and seconds remaining.

Tool

Timezone Converter

Convert time between any two timezones instantly.

Converter

Coin Flip

Flip a virtual coin — heads or tails. Uses cryptographic randomness.

Random

Dice Roller

Roll a virtual 6-sided die. Uses cryptographic randomness. Tracks roll history.

Random

Random Picker

Pick a random winner from a list of names or items. Great for raffles and giveaways.

Random

Random Number Generator

Generate one or more random numbers within a custom range.

Random

Pomodoro Timer

Stay focused with timed work sessions and breaks using the Pomodoro technique.

Tool

Stopwatch

A simple, accurate stopwatch with lap times.

Tool

No tools found. Suggest one at [email protected].

Guides

Short fixes for the problems that send people looking for these tools in the first place.

PDF Rotation Will Not Save

Why viewers rotate the view instead of the file, and how to make a rotation permanent.

Merging PDFs Privately

How browser-based merging works, and how to verify a tool is not uploading your files.

When PDFs Will Not Merge

The five reasons a merge fails — encryption, signatures, XFA forms, damage, size caps.

Splitting a Signed PDF

Why splitting always invalidates a digital signature, and what to do instead.

PDF Bad Parameter Error

Why Acrobat refuses to save a password-protected PDF, and how to encrypt it anyway.

PDF Will Not Compress

Why re-compressing does nothing, and the three things that genuinely reduce file size.

PDF Will Not Let You Sign

What actually blocks signing in Acrobat, and why most people do not need its signing workflow.

Word Count Not Working

Why the count vanished or disagrees with someone else's, and what really counts toward a limit.

Outlook Signature Disappearing

Why new and classic Outlook lose your signature, and how to keep a copy you can paste back.

QR Code Not Scanning

Size, density, quiet zone and error correction — what actually breaks a code, especially in print.

Cheque Amounts in Words

Dollars, cents as a fraction, hyphenation, and why the written line overrides the figures.

WAV File Won't Play

WAV is a container, not a format. Why voicemail WAVs fail, how to check yours, and the fix.

MP3 to WAV and Quality

Why converting cannot restore what MP3 discarded, and when a WAV is still the right choice.

Recording Too Quiet

Why recordings come out quiet, and how to boost one without making it distort.

Inflation Calculators Disagree

Different indexes and different periods. Why two calculators give two answers, and which to use.

URL Spaces: %20 or +

Why + only means a space in query strings, and what each language's encoder produces.

Inclusive vs Exclusive Days

Why date counts disagree by exactly one day, days versus nights, and how deadlines count.

Odd Aspect Ratios

Why 1366x768 is 683:384, why 21:9 monitors aren't 21:9, and when it matters.

Google Photos Export Frame

Find Export frame in the new video editor, and fix it saving the wrong moment.

Combine Voice Memos

Voice Memos can't merge recordings. How to join them into one file without an app.

Reverse a Voice Memo

Voice Memos can't play backwards. How to reverse a recording on iPhone without an app.

Roman Numeral Date Tattoos

The order, numeral and year mistakes to check before a Roman numeral date is inked.

Excel Contacts to iPhone

Get a spreadsheet of names and numbers into iPhone Contacts without an app.

Outlook Imports Only One Contact

A .vcf with 200 contacts gives you one in Outlook. Why, and the CSV fix.

iPhone Contacts to Excel

Export iPhone or iCloud contacts and open them as a spreadsheet, no app needed.

Got winmail.dat Instead of a PDF?

Why Outlook sends winmail.dat, how to open it on iPhone, and how the sender stops it.

Open a .msg File on Mac

Read an Outlook .msg file and save its attachments on a Mac without Outlook.

Open an EML File on iPhone

Read a saved .eml email and save its attachments in Safari on iPhone.

PDF Pages Different Sizes

Why merged PDFs end up with mixed page sizes, and how to make every page the same.

Filled PDF Form Appears Blank

Why form answers vanish when someone else opens the file, and how to make them show.

Flatten a PDF Without Adobe

Free ways to flatten form fields and comments, and what flattening really locks.

Secured PDF Won't Print

What a PDF permissions password does, and how to lift print and copy restrictions.

Black Boxes Don't Redact a PDF

Why blacked-out text can still be copied out of a PDF, the 10-second test, and the fix.

Remove Location From Photos

Strip GPS location from a photo before posting or selling, on iPhone or Android.

Picture Sideways When Uploaded

Why photos turn sideways on Teams, Zoom or Outlook uploads, and how to fix them for good.

Hide a License Plate in a Photo

Why blur and pixelation can fail, and how to cover a plate or face properly.

Make a Photo Square Without Cropping

Fit the whole picture into a square for Instagram, with a border or blurred background.

Change an Image to 300 DPI

DPI is a label, not detail. Set 300 DPI without resizing, and check you have enough pixels.

PDF Text Line Breaks

Why text copied from a PDF pastes with a break at every line, and how to fix it.

Alphabetize a List in Notes

iPhone Notes can't sort the lines in a note. How to alphabetize a list anyway.

Video Plays Sideways

Why phone videos end up sideways, and how to fix one without re-encoding.

Prorated Rent: 30 or 31 Days?

Why prorated rent calculators disagree, with a worked example of all three methods.

Hours and Minutes to Decimal

Why 7:45 is 7.75 hours, not 7.45, plus a quick table and the 7-minute rounding rule.

Split a Bill With Tax and Tip

Split by item, share tax and tip in proportion, and make the cents add up exactly.

CSV Too Large for Excel

Excel stops at 1,048,576 rows. Split the file into parts that fit, without uploading it.

Excel Removes Leading Zeros

Why 02134 becomes 2134 and long IDs end in zeros, and how to keep them.

CSV Opens in One Column

Why Excel puts a whole CSV in column A, and how to split it into proper columns.

Is This QR Code Safe?

How QR code scams work and how to read where a code really goes before you open it.

Verify a SHA-256 Checksum

Check a download's SHA-256 on Windows or Mac without typing commands, and what a mismatch means.

Song as iPhone Ringtone

The 30-second limit, and how to turn any song into an iPhone ringtone with GarageBand.

Mic Only in Left Channel

Why a recording plays in only one ear, how to fix the file, and how to stop it next time.

Open Publisher Files

Publisher left Microsoft 365. How to open .pub files free and save them as PDF.

CSV "Illegal Quoting" Error

Why Shopify and other imports reject a CSV with "Illegal quoting in line 1", and a free fix.

Canvas Invalid File Type

Why Canvas rejects your submission, including the Google Drive and OneDrive bug, and the fix.

Can ATS Read My PDF Resume?

See the text hiring software gets from your resume PDF, and what to fix.

Homework Photos to One PDF

Combine photos of handwritten work into one PDF that's in order and small enough to submit.

YouTube Thumbnail Over 2MB

Why phone uploads hit YouTube's 2 MB thumbnail limit, and how to get under it.

Resume + Cover Letter in One PDF

When to combine them, which goes first, and how to do it without uploading your details.

Poshmark Photos Cut Off

Make listing photos that fit Poshmark's square or 3:4 frame without cropping the item.

Redact a PDF Without Adobe Pro

Why boxes drawn in Edge or Reader leave the text behind, and how to redact for real, free.

iPhone Photos on Chromebook

Chromebooks can't open HEIC. Convert a batch of iPhone photos to JPG without uploading them.

Merge PDFs on a Chromebook

Combine PDFs and Google Docs into one PDF on a Chromebook, free, with no add-on.

Voice Recording in Google Slides

Record your voice as MP3 and add it to a slide, with no extension or app.

Convert to MP3 on a Chromebook

M4A, WebM, MP4 or MOV to MP3 in Chrome, with no extension, no Linux and no upload.

What Is Fair Toolbox?

Fair Toolbox is a collection of free, browser-based utilities. Every tool runs entirely on your device — your data is processed locally using JavaScript, never uploaded to a server.

There are no accounts, no email gates, and no tracking links injected into your output. Just tools that do what they say.

Why Use Fair Toolbox?

100% free — no premium tiers, no usage limits
No account or signup required
No email collection
No tracking links in generated output
Your data is processed on your device, not our servers