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Online Tools X

Free privacy-first suite of web-based productivity and lifestyle utilities requiring no registration.

Starting at

Free

Free tier1 plan

Online-Clock.org

Free online clock with alarm, stopwatch, countdown timer, and world clock tools.

Starting at

Free

Free tier1 plan

Online-Notepad.io

The source of truth for SaaS pricing. Historical data, instant alerts, a developer API.

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Free browser-based notepad with autosave to local storage, no sign-up, and no premium tiers.

Starting at

Free

Free tier1 plan

OnlineCalculatorPlus

Free suite of 18 web calculators covering percentages, BMI, mortgage, compound interest, and calculus derivatives.

Starting at

Free

Free tier1 plan

OnlinePCTools PDF Unlocker

Browser tool to remove password protection from PDF files, with free and paid tiers.

From

$9.99/mo

Free tier4 plans

Opal

Opal is a focus and screen time management app for iOS, Android, and Mac that blocks distracting apps and websites to help you build healthier digital habits.

From

$8.29/yr

Free tier2 plans

OpenHabitTracker

Free, open source app to take notes, plan tasks, and track habits without a demotivating streak counter.

Starting at

Free

Free tier1 plan

Ordr

ADHD-friendly AI task manager that turns brain dumps into a clear, structured daily plan.

From

$4.99/mo

Free tier2 plans

Org Mode

Free GNU Emacs major mode for keeping notes, authoring documents, computational notebooks, and managing to-do lists in plain text.

Starting at

Free

Free tier1 plan

OrgPad

Visual mind-mapping and note-connecting workspace for calm, structured thinking.

From

$7.49/mo

Free tier3 plans

Orivis

Decision journaling tool that tracks options and outcomes with AI comparison to help improve decision-making over time

From

$12/mo

Free tier3 plans

Otter Transcription

AI Meeting Transcription and Note-Taking Platform with Live Transcription and Summaries

From

$16.99/mo

Free tier4 plans

Otter.ai

AI meeting transcription and note-taking assistant

From

$16.99/mo

Free tier4 plans

OurFamilyWizard

OurFamilyWizard is a co-parenting app that helps divorced and separated parents manage schedules, expenses, communication, and legal documentation.

From

$9.17/mo

OurPact

Cross-platform parental control and family locator app for iOS and Android.

From

$6.99/mo

Free tier3 plans

Outmap

Offline trail and terrain mapping app for hikers and riders.

From

$59.88/yr

Free tier2 plans

Overleaf

Online collaborative LaTeX editor for writing and publishing documents.

From

$15/mo

Free tier2 plans

OwnSync Note

Local-first note-taking app with optional lifetime Pro license for cloud sync.

From

$39/yr

Free tier2 plans

Oxygen PDF

PDF editing tool with free web tools and a one-time-purchase desktop Pro app.

From

$9/yr

Free tier2 plans

PCVITA PDF Restriction Remover

Windows/macOS tool that removes PDF restrictions without needing Adobe Acrobat or the owner password.

From

$39/yr

Free tier2 plans

PDF Annotations

Local-first tool that extracts PDF highlights and comments into Markdown, CSV, or text exports.

From

$5.99/mo

Free tier2 plans

PDF Candy

Online and desktop PDF toolkit with 40+ tools for converting, editing, compressing, and securing PDF files.

From

$6/mo

PDF Compressor

Free browser-based tool to compress PDF file sizes for easier sharing and uploading.

Starting at

Free

Free tier1 plan

PDF Dino

AI-powered PDF data extraction tool that converts unstructured PDF documents into structured CSV, Excel, and JSON formats via API.

From

$20/mo

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