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APPS

48 free tools — built to stand out

Rewrite text in any tone — formal, casual, academic, creative — up to 3 variations powered by Claude AI

Claude AI7 tones3 variationsFree

✦ New · AI→

AI GRAMMAR CHECKER

Fix grammar, spelling, and style with Claude AI — 5 modes including rewrite, formal, casual, and shorten

Claude AIGrammar & spelling5 writing modes

✦ AI · Writing→

AI TEXT SUMMARIZER

Summarize any article, document, or text in seconds — choose length, format, and focus with Claude AI

Claude AIBullet or paragraphLength control

✦ AI · Writing→

AI ORIGINALITY CHECKER

AI-powered originality analysis — flags unoriginal phrasing, clichés, and generic language with a scored report

Claude AIOriginality scorePhrase flags

✦ New · AI→

MORTGAGE CALCULATOR

Monthly payment with taxes, insurance & HOA — full amortization schedule, total interest, payoff date

PITI breakdownAmortization tableHOA support

New · Finance→

COMPOUND INTEREST CALCULATOR

See how investments grow with compound interest and monthly contributions — year-by-year table, Rule of 72

Year-by-year tableMonthly contributionsRule of 72

New · Finance→

SALARY CALCULATOR

Convert salary between hourly, daily, weekly, monthly and annual rates — includes US federal tax estimate

All pay periodsFederal tax estimateTake-home pay

New · Finance→

SALES TAX CALCULATOR

Calculate sales tax for any US state — quick presets, reverse tax (price-inclusive), reference table

State presetsReverse taxQuick table

New · Finance→

RETIREMENT CALCULATOR

Project your nest egg, monthly income, portfolio longevity, and 4% rule safe withdrawal — are you on track?

Nest egg projection4% rulePortfolio longevity

New · Finance→

SAVINGS GOAL CALCULATOR

Find out exactly how much to save per month to reach any financial goal by any target date

Required contributionTarget dateInterest earned

New · Finance→

LOAN CALCULATOR

Calculate monthly payments for personal, auto, and student loans — full amortization schedule and payoff date

Amortization tablePayoff dateTotal interest

New · Finance→

INVOICE GENERATOR

Create professional invoices instantly — line items, tax, discount, download as PDF. No watermark, no sign-up.

PDF downloadNo watermarkTax & discount

Calculate tips and split bills instantly — any tip %, any number of people, per-person totals

Bill splitterCustom tip %Per-person total

CURRENCY CONVERTER

Live exchange rates for 170+ currencies — convert any amount, popular pairs, and quick reference table

170+ currenciesLive ratesPopular pairs

JSON FORMATTER & VALIDATOR

Beautify, validate, minify and explore JSON with syntax highlighting, tree view, and sort keys — 100% local

Beautify & minifyTree viewSort keys100% local

Test regular expressions with real-time match highlighting, group capture, replace mode, and 9 preset patterns

Live highlightingGroup capture9 presetsReplace mode

BASE64 ENCODER / DECODER

Encode text or files to Base64 and decode Base64 strings — URL-safe mode, file encoding, 100% local

Text & filesURL-safe modeFile encoding100% local

URL ENCODER / DECODER

Encode and decode URLs — encodeURI, encodeURIComponent modes, plus a URL breakdown parser

encodeURIComponent modeURL parser100% local

Compare two texts and highlight every addition, deletion, and unchanged line — unified and split view

LCS algorithmUnified & split viewIgnore whitespace100% local

CRON EXPRESSION GENERATOR

Build cron expressions visually with plain-English descriptions, preset schedules, and next 5 run times

Visual builderPlain EnglishNext run times9 presets

CSS GRADIENT GENERATOR

Create linear, radial and conic CSS gradients visually — unlimited color stops, presets, live preview, copy CSS

Linear · Radial · ConicLive preview9 presetsCopy CSS

Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes instantly — 100% local, nothing sent to any server

MD5SHA-256SHA-512100% local

META TAG GENERATOR

Generate SEO, Open Graph, and Twitter Card meta tags with live Google & social preview

SEO tagsOpen GraphTwitter CardGoogle preview

QR CODE GENERATOR

Create QR codes for URLs, text, WiFi passwords, contacts and email — no watermark, free PNG download

URL & textWiFi QR codevCardNo watermark

CITATION GENERATOR

Generate citations in APA, MLA, Chicago, Harvard and IEEE — websites, books, journals, build a reference list

APA · MLA · ChicagoHarvard · IEEEReference list

New · Writing→

READABILITY CHECKER

Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, ARI — sentence-by-sentence analysis and grade level

5 formulasGrade levelSentence analysis

Words, characters, sentences, reading time, keyword density & platform limits — live updates

Word & char countReading timeKeyword density

Instant text translation across 40+ languages — detect language, swap, no account required

40+ languagesAuto-detectSwap

TEXT CASE CONVERTER

Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case and 10 more

14 case typescamelCasesnake_caseClick to copy

TDEE / CALORIE CALCULATOR

Calculate daily calorie needs for weight loss, maintenance, or gain — BMR, TDEE, macro targets included

BMR + TDEEMacro targetsAll activity levels

New · Health→

PREGNANCY DUE DATE CALCULATOR

Calculate your due date from LMP or conception date — trimester, weeks pregnant, and milestone timeline

Due dateWeeks pregnantMilestone timeline

New · Health→

BODY FAT CALCULATOR

Estimate body fat percentage using the US Navy or BMI method — fat mass, lean mass, fitness category

US Navy methodBMI methodFitness category

New · Health→

WATER INTAKE CALCULATOR

Daily water recommendations by weight, age, activity & climate — in oz, liters, cups, and bottles

Weight-basedHydration scheduleActivity adjustment

New · Health→

Body Mass Index with healthy weight range, BMR, TDEE, and ideal weight — metric & imperial

BMIBMR / TDEEIdeal weightMetric + Imperial

IMAGE TO PDF CONVERTER

Convert JPG, PNG, WebP to PDF — multi-image support, page size & margin control, 100% local

JPG · PNG · WebPMulti-imagePage size options100% local

New · Image→

IMAGE RESIZER & COMPRESSOR

Resize, compress & convert images to JPG, PNG, WebP — social media presets, batch mode, 100% local

Resize & compressJPG · PNG · WebPSocial presets

IMAGE COLOR PICKER

Upload any image, click any pixel — extract HEX, RGB, HSL, CMYK colors and auto-generate a full palette

HEX · RGB · HSLAuto paletteMagnifier

PERCENTAGE CALCULATOR

6 percentage modes — find X% of Y, percentage change, add/subtract %, reverse percentage and more

6 calc modes% change% increase/decrease

Scientific, tip & bill splitter, percentage, and loan/mortgage calculator in one place

ScientificTip splitterLoan & mortgage

ROMAN NUMERAL CONVERTER

Convert numbers to Roman numerals and back — supports up to 3,999,999 with reference chart

Number → RomanRoman → NumberReference chart

RANDOM NUMBER GENERATOR

Generate random numbers, roll dice, pick random items from a list, flip a coin — cryptographically secure

Dice rollerRandom pickerCoin flip

QUANTUM RANDOM NUMBER GENERATOR

True random numbers from quantum vacuum fluctuations via the ANU QRNG — actual quantum physics, not an algorithm

Quantum vacuumANU QRNGBulk generate

Exact age in years, months, days, hours & seconds — birthday countdown, date difference & lifetime stats

Exact ageDate differenceNext birthday

TIME ZONE CONVERTER

Convert times, live world clock, future date preview, and executive meeting scheduler across time zones

35+ time zonesWorld clockMeeting scheduler

STOPWATCH & TIMER

Stopwatch with lap times, countdown timer with presets, and Pomodoro technique timer

Lap timesCountdownPomodoro

COUNTDOWN TO DATE

Count down to any event — weddings, birthdays, launches, holidays. Save multiple countdowns with live seconds.

Any dateSave multipleHoliday presets

PASSWORD GENERATOR

Cryptographically secure passwords — standard, passphrase, and bulk modes. 100% local, nothing stored.

100% localStrength meterPassphrase mode

UNIT CONVERTERS

Length, weight, temperature, color codes, data, cooking, clothing & more — 17 categories, 100+ units

17 categories100+ unitsColor preview

Our Philosophy

The best tools should be free.
No sign-up. No paywalls. No friction.
Just fresh apps that get out of your way
and let you do the work.

FREE ONLINE TOOLS — 67FRESH.COM

67 Fresh is a growing collection of 48 free online tools. Our JSON formatter beautifies, validates, and minifies JSON entirely in your browser. The mortgage calculator computes monthly payments with taxes, insurance, HOA, and a full amortization schedule. The compound interest calculator shows year-by-year investment growth. The salary calculator converts between hourly, daily, weekly, and annual pay with tax estimates. The AI paraphraser rewrites text in 7 different tones powered by Claude. Our regex tester, Base64 encoder, diff checker, and cron generator cover everyday developer needs. All 48 tools — no sign-up, no account, no ads, forever free.