⭐ Starlight Tools / Science & Research Tools

Science & Research Tools

Free browser-based science tools for physics, chemistry, biology, engineering, and astronomy—everything runs locally for privacy. Try our Scientific Figure Extractor, Molecular Weight Calculator, Lab Dilution Planner, or Online Planetarium.

Science Screenshot of the Scientific Figure & Page Extractor showing PDF thumbnails ready to download

Scientific Figure & Page Extractor

Extract high-quality images of figures and pages from research PDFs. v1.0

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Science Research Abstract Formatter screenshot with IMRaD headings and formatted output panes

Research Abstract Formatter

Format abstracts with IMRC headings, clean whitespace, and convert to HTML, Plain Text, or LaTeX. v1.0

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Science BioStats Quick Calculator screenshot with t-test, chi-square, and ANOVA inputs

BioStats Quick Calculator

Quickly calculate t-test, chi-square, or ANOVA for your biological data. v0.9 (Upgrade coming soon)

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Science Sequence Cleaner & Validator screenshot highlighting DNA and protein validation results

Sequence Cleaner & Validator

Clean and validate DNA/protein sequences, remove invalid characters, and ensure proper formatting. v1.0

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Science Blot Image Cleaner screenshot showing contrast and inversion on a gel image

Blot Image Cleaner

Upload blot/gel images for auto-inversion, contrast enhancement, and noise removal. v1.0

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Science PCR Primer Calculator screenshot with Tm, GC%, and clamp checks

PCR Primer Calculator (Tm & GC%)

Compute primer Tm (Wallace, GC% model, nearest-neighbor), GC content, 3′ GC clamp quality, and quick self-dimer/hairpin checks. v1.0.0

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Science Protein isoelectric point calculator showing pI result and charge vs pH chart

Protein Isoelectric Point (pI) Calculator

Compute isoelectric point and net charge vs pH with EMBOSS/Bjellqvist pKa sets or custom values. Private, client-side. v1.0.0

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Science Molecular Weight Calculator screenshot with chemical formula input and computed molar mass

Molecular Weight Calculator

Calculate molecular weight from chemical formulas or protein/DNA/RNA sequences. v1.0

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Science Moles, mass, and gas volume calculator screenshot converting grams, moles, and STP volume

Moles ↔ Mass ↔ Volume (Gas at STP)

Convert between moles, grams, and gas volume using STP/IUPAC STP/SATP molar volume. 100% client-side. v1.0

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Science Serial Dilution Planner screenshot with pipetting steps table and dilution ladder

Lab Dilution Planner — Serial Dilutions

Auto-plan from stock → target with pipetting limits, or build a fold-series ladder. Unit-aware, copy/share, accessible UI. v1.0.0

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Science Enzyme Kinetics Calculator screenshot with Michaelis–Menten plot and fit parameters

Enzyme Kinetics Calculator

Michaelis–Menten plots with Lineweaver–Burk, Eadie–Hofstee, Hanes–Woolf views, plus in-browser fitting of Vmax & Km. Private, client-side. v1.0.0

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Science DNA/RNA Tm Calculator screenshot showing Wallace, GC%, and nearest-neighbor temperature results

DNA/RNA Melting Temperature (Tm) Calculator

Compute Tm via Wallace, GC% and nearest-neighbor models with salt, concentration, and solvent adjustments. Private, client-side. v1.0.0

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Science Protein Concentration Calculator screenshot with Bradford, BCA, and A280 assay options

Protein Concentration Calculator

Estimate protein concentration via Bradford, BCA, or A280 with curve fitting, dilution, and path length support. Private, client-side. v1.0.0

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Science Beer–Lambert Law calculator screenshot solving absorbance, concentration, and molar absorptivity

Beer–Lambert Law (A = εlc)

Solve absorbance, ε, path length, or concentration; unit-aware with %T ↔ A conversion. 100% client-side. v1.0

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Science Henderson–Hasselbalch buffer pH calculator screenshot with acid/base ratio inputs

Henderson–Hasselbalch — Buffer pH

Compute pH from pKa and [A⁻]/[HA], or design a buffer recipe from target pH, concentration, and volume — all client-side. v1.0

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Science Sample Size Calculator screenshot for two-sample power and effect size inputs

Sample Size Calculator

Determine the minimum sample size for comparative studies and A/B tests. v1.0

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Science Beam Load Calculator screenshot with span, loads, and shear/bending diagrams

Beam Load Calculator

Compute support reactions, shear force diagram, and bending moment diagram for a simply supported beam with point loads and UDLs. v1.0

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Science Engineering Tolerances Calculator screenshot with hole/shaft fits and clearance results

Engineering Tolerances Calculator

Compute hole/shaft limits from deviations or IT grades (H/h/js), plus min/max clearance & fit type. v1.0.0

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Science Fluid Flow Calculator screenshot computing Reynolds number, velocity, and flow regime

Fluid Flow Calculator

Compute Reynolds number, velocity, or pipe diameter. Classify laminar vs turbulent flow. 100% client-side. v1.0

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Science Buoyancy Calculator screenshot showing buoyant force, displaced volume, and draft depth

Buoyancy Calculator

Compute buoyant force and floating depth (draft) from density, displaced volume, and gravity. Optional mass/weight & waterplane area for equilibrium draft. v1.0.0

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Science RC time constant calculator screenshot with charging and discharging voltage plot

RC Time Constant Calculator

Enter R, C, and initial voltage. Get τ = R·C and a live charging/discharging plot. Optional supply voltage for charging. Private, client-side.

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Science Work, power, and efficiency calculator screenshot with force, distance, and angle inputs

Work, Power & Energy Calculator

Compute work (F·d·cosθ), average power (W/t), and efficiency from input energy or power. Private, client-side.

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Science Gravity & Newton’s Second Law calculator screenshot comparing planetary gravity and F = m·a

Gravity & Newton’s Second Law

Calculate surface/altitude gravity, compare Earth-g, and solve F = m·a — all client-side and private. v1.0

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Science Free Fall & Gravity Calculator screenshot with height input and impact velocity results

Free Fall & Gravity Calculator

Time to hit ground, impact velocity, and kinetic energy from height. Presets for Earth, Moon, Mars, Jupiter; optional initial velocity & mass. v1.0

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Science Acceleration Unit Converter screenshot with g, m/s², ft/s², and other unit options

Acceleration Unit Converter

Convert between m/s², g, ft/s², in/s², Gal/mGal/µGal, km/h/s, mph/s, and knot/s with adjustable precision, copy & share — all client-side. v1.0

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Science Projectile Motion Calculator screenshot showing range, flight time, and maximum height outputs

Projectile Motion Calculator

Compute range, flight time, max height, apex distance & impact speed — presets for Earth/Moon/Mars and custom g. 100% client-side. v1.0

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Science Centripetal Force Calculator screenshot with mass, speed, radius inputs and g-force result

Centripetal Force Calculator

Compute centripetal force, radial acceleration, and g-forces from mass, speed, and radius — all private and client-side. v1.0

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Science Pendulum Calculator screenshot calculating period and frequency from length and gravity

Pendulum Calculator

Compute period T and frequency f from length, gravity, and amplitude. Small-angle or exact large-angle (elliptic integral, AGM). 100% client-side. v1.0

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Science Kinetic and potential energy calculator screenshot with mass, height, and velocity fields

Kinetic & Potential Energy Calculator

Calculate KE = ½mv², PE = mgh, and total energy. Solve using conservation for speed at any height or maximum height. v1.0.0

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Science Spring Oscillator calculator screenshot for Hooke’s Law and simple harmonic motion

Spring Oscillator Calculator

Compute force (F = −kx), SHM period/frequency (T, f, ω), and max spring energy (½kx²) from k, m, and x. v1.0.0

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Science Resonance & Natural Frequency Calculator screenshot with damping ratio, Q factor, and bandwidth outputs

Resonance & Natural Frequency Calculator

Compute ωₙ / fₙ, damping ratio ζ, Q factor, damped frequency, decay α, and bandwidth for mass–spring–damper or RLC (series/parallel). Private, client-side. v1.0.0

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Science Lens and mirror equation calculator screenshot with ray diagram and magnification results

Lens / Mirror Equation Calculator

Compute image distance, magnification, and image nature (real/virtual, upright/inverted) using the thin lens / mirror equation. Private, client-side. v1.0.0

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Science Ideal Gas Law calculator screenshot solving PV = nRT with pressure, volume, moles, and temperature inputs

Ideal Gas Law Calculator (PV = nRT)

Solve PV = nRT for any variable with unit support (atm, kPa, bar, mmHg; L, mL, m³; K/°C). Includes Boyle’s, Charles’s, and Gay-Lussac two-state solvers. v1.0.0

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Science Torque and moment of inertia calculator screenshot with shape selector, force, and lever arm inputs

Torque & Moment of Inertia Calculator

Compute τ = rF, I for common shapes (sphere, cylinder/disk, rod), angular acceleration α = τ/I, and rotational KE ½Iω². v1.0.0

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Acoustic Tools

Science Acoustic Impedance Calculator screenshot showing density, speed of sound, and reflection results

Acoustic Impedance Calculator

Compute z=ρc (Rayl), tube Zc=ρc/S, wavelength, and normal-incidence reflection & transmission. Private, client-side. v1.0.0

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Science Speed of sound vs temperature calculator screenshot with humidity and pressure options

Air — Speed of Sound vs. Temperature

Compute c from temperature (°C/°F/K). Optional humidity & pressure. Linear check + moist-air physics. v1.0.0

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Science Gases speed of sound table screenshot with search, unit switcher, and temperature normalization

Gases – Speed of Sound

Searchable table of sound speeds in common gases. Normalize to 0 °C (or any °C), switch units, and export CSV. Private, client-side. v1.0.0

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Science Fan noise power calculator screenshot estimating sound power from motor and airflow

Fans — Noise Power Generation

Estimate overall sound power level from motor power, static pressure, and flow (SI & Imperial). v1.0.0

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Science Floor vibration resonance checker screenshot comparing first-mode frequency to walking and running harmonics

Floor Vibrations — Resonance Check

Estimate first-mode floor frequency and compare against walking, running, dancing, and machinery harmonics. Private, client-side. v1.0.0

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Cosmology Tools

Science Star Field Planetarium screenshot rendering interactive 3D night sky

Star Field Planetarium (In development)

Explore a realistic 3D starry night sky with interactive controls. HYG 4.1 dataset, rendered 5020 stars. v0.1.1

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Science Redshift to Distance Calculator screenshot with luminosity and comoving distance outputs

Redshift Distance Calculator

Calculate Luminosity, Angular Diameter, and Comoving Distances from Redshift. v1.0

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Photon energy and wavelength calculator showing E = hf and λ = c/f results across units

Photon Energy & Wavelength Calculator

Convert between photon energy, wavelength, and frequency (E = h·f, λ = c/f) with joules, eV, nm, Hz, and a visible spectrum bar. v1.0.0

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De Broglie wavelength calculator showing matter-wave λ = h/(mv) results with comparison

De Broglie Wavelength Calculator

Compute matter-wave wavelengths λ = h/(m·v) with outputs in m/nm/pm, momentum, KE, and an electron vs baseball comparison. v1.0.0

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Heisenberg uncertainty calculator showing Δx·Δp and ΔE·Δt bars vs ħ/2

Heisenberg Uncertainty Calculator

Check position–momentum and energy–time uncertainties against ħ/2, with minimum partner values, ratios, and visual bars. v1.0.0

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Qubit vs classical bit calculator showing 2^n growth and RAM estimates

Qubit vs Classical Bit Calculator

See 2^n state growth, state-vector memory needs, and the maximum qubits you can simulate from a RAM budget at chosen precision. v1.0.0

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Bloch sphere visualizer showing a qubit arrow and probabilities

Quantum Superposition State Visualizer

Plot single-qubit states on a Bloch sphere from amplitudes or θ/φ, see probabilities, share links, and export the visualization. v1.0.0

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Quantum decoherence calculator showing collision rate and decoherence time outputs

Quantum Decoherence Time Calculator

Estimate collisional decoherence from pressure, temperature, particle size, and Δx. See λdB, collision rate, Γ, and τ with presets for air, vacuum, water, and space. v1.0.0

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Quantum gate truth table generator showing a small circuit with H and CNOT gates

Quantum Gate Truth Table Generator

Visual mini circuit builder for Pauli, H, S/T, CNOT/CZ, and SWAP on 1–3 qubits with live truth table output. Includes Bell, GHZ, and phase-kick presets. v1.0.0

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Quantum tunneling calculator showing exp(-2κa) transmission

Quantum Tunneling Probability Calculator

Estimate barrier penetration with T ≈ exp(-2κa) from mass, barrier height, width, and energy. Includes electron and alpha-decay presets. v1.0.0

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Schrodinger particle-in-a-box calculator showing energy ladder and |psi|² plot

Schrodinger Equation Solver

1D particle-in-a-box: energies, wavefunctions, and |psi|² visualization with an energy ladder. v1.0.0

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Quantum entanglement calculator showing CHSH bar and distance inputs

Quantum Entanglement Distance Calculator

Estimate Bell-CHSH violation vs distance, loss, visibility, and detector efficiency with coincidence rates. v1.0.0

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Casimir effect calculator showing vacuum pressure vs gap

Casimir Effect Force Calculator

Compute Casimir pressure/force between parallel plates with a⁻⁴ scaling, presets for nano/micro gaps, and atmospheric comparison. v1.0.0

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Zero-point energy calculator showing vacuum energy in a cup of space

Zero-Point Energy Calculator

Estimate vacuum energy from density × volume with cosmological presets, mass equivalence, battery comparisons, and toy cutoff model. v1.0.0

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Compton scattering calculator showing photon wavelength shift arrows

Compton Scattering Calculator

Compute Δλ = λC(1 − cosθ), final wavelength, and photon energy change for electron scattering. Presets for X-ray backscatter and small-angle lasers. v1.0.0

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Science Space Unit Converter screenshot converting AU, light-years, parsecs, and kilometers

Space Unit Converter

Instantly convert between AU, Light-Years, Parsecs, and Kilometers. v1.0

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Science Cosmology Calculator screenshot showing universe age and distance results for redshift

Cosmology Calculator (Age & Distance)

Calculate the age of the universe and cosmic distances for a given redshift. v1.0

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Science Rocket Delta-V Calculator screenshot with multi-stage Tsiolkovsky Δv breakdown

Rocket Delta-V Calculator

Compute rocket Δv with up to 4 stages using the Tsiolkovsky equation — includes per-stage breakdown and total Δv chart. v1.0

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Science Satellite Orbit Period Calculator screenshot showing orbital speed, period, and revs per day

Satellite Orbit Period Calculator

Enter altitude to compute orbital period, velocity, and revs per day — based on Kepler’s Third Law. v1.0

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Science Hohmann Transfer Calculator screenshot with Δv1, Δv2, total Δv, and transfer time

Hohmann Transfer Calculator

Δv₁, Δv₂, total Δv & time of flight between two circular orbits — optional plane change. v1.0

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Science Escape Velocity Calculator screenshot with altitude input and escape speed results

Escape Velocity Calculator

Altitude → escape velocity for Earth, Moon, Mars, or a custom body. Also shows circular speed and the √2 relation. v1.0.0

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Science Blackbody Radiation calculator screenshot with temperature entry, Wien peak, and spectrum plot

Blackbody Radiation Calculator

Peak wavelength (Wien’s law) and radiated power (Stefan–Boltzmann), with optional emissivity & area and a mini spectrum plot. v1.0.0

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Science COSMOTOOLS modern cosmology calculator screenshot with inputs for H0, ΩM, ΩΛ, and redshift

COSMOTOOLS — Modern Cosmology Calculator

Compute luminosity, comoving & angular distances, lookback time, universe age, q0 & Ωk. Adjustable H0, ΩM, ΩΛ. Private, client-side. v1.0.0

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Modelling and Simulations

Science Conway’s Game of Life simulator screenshot with grid of live and dead cells

Conway’s Game of Life

Interactive pixel-grid simulator of Conway’s Game of Life — draw, run, pause, and explore emergent patterns. v1.0

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Science Ant Colony Simulator screenshot showing ants following pheromone trails to food

Ant Colony Simulator

Watch emergent trails form via pheromones. Tweak evaporation, diffusion, noise, and agent count in real time. v1.0

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Science Population Growth Simulator screenshot comparing exponential and logistic growth curves

Population Growth Simulator

Compare exponential and logistic growth. Adjust N₀, r, and K; play/pause, export PNG/CSV. Private, client-side. v1.0.0

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Science Markov Chain Random Walk tool screenshot with transition matrix and state graph

Markov Chain Random Walk

Define states and a transition matrix, then simulate random walks. View paths, visit counts, and empirical distributions. Private, client-side. v1.0.0

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About These Science & Research Tools

These science tools span physics, chemistry, biology, engineering, and astronomy—running entirely in your browser so your data stays private.

Popular picks include the Scientific Figure Extractor, Molecular Weight Calculator, Lab Dilution Planner, Ideal Gas Law Calculator, and Online Planetarium. Use them free anytime.