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Free planVideo
DownTik.app (MusicallyDown) is a free online TikTok video downloader that saves videos without watermarks in high-quality MP4 format. Users paste TikTok links to download clips or related MP3 audio through the web interface.
Free planCode
Downtime Monkey provides website downtime alerts and uptime monitoring with email, SMS, and Slack notifications. It tracks response times, publishes uptime statistics and downtime logs, and offers a free tier covering dozens of monitors checked every few minutes.
Free planCode
DPDK is the Data Plane Development Kit, an open-source framework for fast packet processing on standard hardware. It helps network and telecom developers build high-throughput user-space applications without proprietary NIC appliances, with documentation, supported hardware lists, and an active contributor community.
Free planData
dplyr is the tidyverse grammar-of-data-manipulation package for R, providing fast, consistent verbs to filter, mutate, summarise, arrange, and join data-frame-like objects in memory or on disk. Official docs cover grouped operations, two-table joins, row-wise and column-wise programming patterns, and integration with the broader tidyverse ecosystem.
Free trialAssistant
Dr. Snooze AI is SleepSpace’s personalized AI sleep coach embedded in the SleepSpace mobile app alongside adaptive sound, CBT-I programs, and optional wearable integrations. SleepSpace markets deeper sleep via smart sounds, meditations, snore tracking, and coaching beyond basic sleep tracking.
Free planImages
Dr.Watermark (watermark.phd) is an online AI visual toolkit focused on removing watermarks from photos and related cleanup tasks such as text removal, background cutouts, and enhancement. The service uses a credit model where one credit typically covers one processed image or a short video clip, with daily free credits for light use.
Free planCode
Dracula is a dark color scheme for code editors, terminals, and other developer tools, maintained as an open theme project with ports for hundreds of applications. It provides consistent purple-accented palettes so teams can match VS Code, Vim, iTerm, and many other environments.
Free planCode
Draftbit is a visual app builder for web, iOS, and Android that pairs AI agents with drag-and-drop editing, live preview, Supabase backends, and one-click publishing. Teams can import and export full source code, connect MCP integrations, and hire Draftbit experts for implementation help.
Free planImages
Drafted is an AI house plan generator that produces schematic and furnished floor plans, 3D layouts, exterior renders, and exports to PDF, DXF, and IFC. Homebuyers, architects, and builders choose rooms and house shape, compare generated layouts, collaborate with shared permissions, and refine walls and openings in the editor.
Free planAssistant
Draftly helps LinkedIn creators and teams plan content, generate posts and carousels with AI, schedule publishing, and run browser-based commenting and outreach workflows. Plans scale post and carousel limits plus extension comment allowances, with optional Inbox Management and LinkedIn Outreach add-ons.
Free planCode
DragonRuby Game Toolkit is a cross-platform 2D game engine scripted in Ruby. You write a tick method in mygame/app/main.rb, see code changes while the game runs, and package builds for web and desktop, with iOS and Android publishing on the Pro tier.
Free tier unknownAssistant
Dramax is an AIGC platform from Dramax Interactive that turns text or dream-like concepts into cinematic video shots through a web studio. The public homepage emphasizes fast, cinema-grade motion output but does not publish self-serve plan pricing.
Free to startAssistant
Draup is an enterprise platform for AI workforce transformation, talent intelligence, and AI sales agents. It combines labor-market data with agentic AI so leaders can plan roles, skills, and go-to-market coverage against real talent supply and cost signals.
Free tier unknownImages
Draw My UI (make real • tldraw) is a tldraw-powered web demo that turns sketched UI wireframes into working interface code. Designers draw layouts in the canvas and the app generates a real UI from those marks.
Free planImages
draw.io is free online diagram software for flowcharts, network diagrams, UML, ER models, BPMN, and other visual documentation. The app runs in the browser and stores diagrams locally or in connected cloud drives.
Free tier unknownImages
drawanyone lets users upload several photos of a person (or pet), wait for model processing, then write custom prompts to generate stylized AI portraits. The community feed highlights user prompts alongside resulting artwork.
Free trialImages
DrawingPics is a native macOS app for Apple Silicon that pairs a sketch whiteboard with on-device diffusion art generation powered by Core ML on the Neural Engine. Users draw on one side and see AI-rendered results locally without a subscription.
Free tier unknownImages
Drawings Alive animates children's sketches into richer AI artwork from uploaded photos or in-app drawing. Parents and teachers upload art, add a short description, and receive enhanced images, with subscription tiers scaling monthly image, video, and 3D outputs.
Free trialCode
DrDroid provides AI SRE agents for alert triage, incident investigation, auto-remediation, and post-incident learning. Prebuilt agents connect to observability, cloud, and chat tools, grounding responses in service context such as owners, dependencies, dashboards, and past incidents.
Free planImages
Dream by WOMBO is an AI art and video generator for web, iOS, and Android. Users enter prompts, pick from many art styles, and create images or cinematic clips, with editing and animation tools for subscribers who need more credits and HD exports.
Free planCode
Dream Decoder is an AI dream interpreter that stores your dream history to spot patterns over time. It offers chat-based interpretation, symbol generation, optional messaging-app links on paid tiers, and privacy-focused journaling without public sharing walls.
Free tier unknownImages
Dream House is a lightweight web demo that lets you upload a photo of your home and compare AI-transformed versions side by side. Built by Clark Dinnison, it highlights instant exterior reimagining from a single upload.
Free planVideo
Dream Interpretation AI provides instant AI dream analysis and storage from the web, including a roast mode for playful readings. Premium subscribers unlock unlimited interpretations, full reports, and priority support while free users retain limited daily usage.
Free planAssistant
Dream Journal Ultimate is a long-running mobile dream journal with AI transcription, cleanup, and cross-entry insights. It helps users capture dreams by voice or text, track patterns, and explore lucid-dream resources from the same brand site.
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